Lamarck Was Right: Difference between revisions

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'''Georges Cuvier:''' And what I am saying is no, that is the stupidest thing anyone has ever heard of.|''[[Hark a Vagrant]]'', [http://harkavagrant.com/index.php?id=35 "In Theory, Your Theories Could Be Sexier"]}}
'''Georges Cuvier:''' And what I am saying is no, that is the stupidest thing anyone has ever heard of.|''[[Hark a Vagrant]]'', [http://harkavagrant.com/index.php?id=35 "In Theory, Your Theories Could Be Sexier"]}}


In [[The Golden Age of Comic Books]], there were well established ways for a character to [[Super Hero Origin|gain his or her powers]]: being bitten by a [[Applied Phlebotinum|radioactive spider]], doing years of [[Charles Atlas Superpower|Charles Atlas training]], having a [[Die or Fly|near-death experience]], extensive mystic training, getting an [[Green Lantern Ring|artifact of great power]], being [[Crimefighting With Cash|disgustingly wealthy]], and scores of other imaginative [[Backstory|backstories]]. With the advent of the [[The Silver Age of Comic Books|Silver Age]] onwards, these [[The Golden Age of Comic Books|Golden Age]] heroes had children. Naturally, they inherited their parents' powers and heroic tendencies and many became [[Legacy Character|legacy characters]], through the sometimes magical agency of [[Superpowerful Genetics]].
In [[The Golden Age of Comic Books]], there were well established ways for a character to [[Super-Hero Origin|gain his or her powers]]: being bitten by a [[Applied Phlebotinum|radioactive spider]], doing years of [[Charles Atlas Superpower|Charles Atlas training]], having a [[Die or Fly|near-death experience]], extensive mystic training, getting an [[Green Lantern Ring|artifact of great power]], being [[Crimefighting With Cash|disgustingly wealthy]], and scores of other imaginative [[Backstory|backstories]]. With the advent of the [[The Silver Age of Comic Books|Silver Age]] onwards, these [[The Golden Age of Comic Books|Golden Age]] heroes had children. Naturally, they inherited their parents' powers and heroic tendencies and many became [[Legacy Character|legacy characters]], through the sometimes magical agency of [[Superpowerful Genetics]].


Um. Okay. We'll make that deal, for the sake of story.
Um. Okay. We'll make that deal, for the sake of story.
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Tough to see, though, how ''[[Genetic Memory|training]]'' is inherited, or how [[Bio Augmentation|body-mods]] get passed on. Pretty good chance that any kid that [[Iron Man]] might have had would not have been [[Cyborg|born with rivets.]]
Tough to see, though, how ''[[Genetic Memory|training]]'' is inherited, or how [[Bio Augmentation|body-mods]] get passed on. Pretty good chance that any kid that [[Iron Man]] might have had would not have been [[Cyborg|born with rivets.]]


If the comic or show is rife with [[My Kung Fu Is Stronger Than Yours]], then the superkid will luck out and be ''at least'' as powerful as the strongest parent at the time of conception, and often [[Goo Goo Godlike|radically more powerful]]. This can get interesting if a family has more than one kid, as each succeeding one gets stronger. This usually also applies to fighting skills; they'll be a prodigy black belt before they can walk. If the parent got their powers from a magical or technological artifact, they'll have ''"internalized"'' and passed on that item's power. To use a real world analogy: if your mom were an IT expert that always carried around a laptop, you'd have a Bluetooth connection in your head and know how to code a Linux kernel from scratch.
If the comic or show is rife with [[My Kung Fu Is Stronger Than Yours]], then the superkid will luck out and be ''at least'' as powerful as the strongest parent at the time of conception, and often [[Goo-Goo Godlike|radically more powerful]]. This can get interesting if a family has more than one kid, as each succeeding one gets stronger. This usually also applies to fighting skills; they'll be a prodigy black belt before they can walk. If the parent got their powers from a magical or technological artifact, they'll have ''"internalized"'' and passed on that item's power. To use a real world analogy: if your mom were an IT expert that always carried around a laptop, you'd have a Bluetooth connection in your head and know how to code a Linux kernel from scratch.


Other times, if the parent got their power from a [[Freak Lab Accident]] involving [[Applied Phlebotinum]], their children will all have that same power, regardless of whether it affected their DNA. This also applies to magic and telepathic powers. Of course, with [[A Wizard Did It|magic]], the reason it's passed down will frequently be less biological than spiritual, so the usual rules need not apply. Another real-world analogy: If your dad were a food tester who developed a high tolerance for poison through controlled exposure, you'd have his high resistance and then some. This one is often [[Retcon|retconned]] into a [[Meta Origin]] or [[Secret Legacy]]; for instance, maybe the accident didn't ''cause'' your dad's powers, it just unlocked the powers already in his DNA, and he passed the "unlocked" version on to you -- and note that ''this'' [http://en.wikipedia.org/wiki/Epigenetics is real science].
Other times, if the parent got their power from a [[Freak Lab Accident]] involving [[Applied Phlebotinum]], their children will all have that same power, regardless of whether it affected their DNA. This also applies to magic and telepathic powers. Of course, with [[A Wizard Did It|magic]], the reason it's passed down will frequently be less biological than spiritual, so the usual rules need not apply. Another real-world analogy: If your dad were a food tester who developed a high tolerance for poison through controlled exposure, you'd have his high resistance and then some. This one is often [[Retcon|retconned]] into a [[Meta Origin]] or [[Secret Legacy]]; for instance, maybe the accident didn't ''cause'' your dad's powers, it just unlocked the powers already in his DNA, and he passed the "unlocked" version on to you -- and note that ''this'' [[wikipedia:Epigenetics|is real science]].


This trope is named for Jean-Baptiste Lamarck, a French naturalist whose theories (of which we call Lamarckian evolution) inspired [[Charles Darwin]] and eventually led to modern Darwinian evolution. While very insightful, his theory of "Inheritance of Acquired Traits" incorrectly viewed the cause of evolution as the parents' self-improvements in life being passed on to their offspring. Giraffes had long necks because they kept stretching for higher branches over many generations, for instance. While this idea has become closely linked to Lamarck, it was not original to Lamarck, nor was it central to Lamarck's contribution to evolutionary theory.
This trope is named for Jean-Baptiste Lamarck, a French naturalist whose theories (of which we call Lamarckian evolution) inspired [[Charles Darwin]] and eventually led to modern Darwinian evolution. While very insightful, his theory of "Inheritance of Acquired Traits" incorrectly viewed the cause of evolution as the parents' self-improvements in life being passed on to their offspring. Giraffes had long necks because they kept stretching for higher branches over many generations, for instance. While this idea has become closely linked to Lamarck, it was not original to Lamarck, nor was it central to Lamarck's contribution to evolutionary theory.
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There is a real world phenomenon known as the epigenome, that describes how the DNA expression if not actual DNA can be affected by environmental factors in the lives of ancestors. For instance, famines at certain stages in the lives of grandparents can adjust the rates of diabetes in the grandchildren. [[Vlog Brothers|Hank Green]] briefly explains the relatively new field of epigenetics in [http://www.youtube.com/watch?v=kp1bZEUgqVI this YouTube video].
There is a real world phenomenon known as the epigenome, that describes how the DNA expression if not actual DNA can be affected by environmental factors in the lives of ancestors. For instance, famines at certain stages in the lives of grandparents can adjust the rates of diabetes in the grandchildren. [[Vlog Brothers|Hank Green]] briefly explains the relatively new field of epigenetics in [http://www.youtube.com/watch?v=kp1bZEUgqVI this YouTube video].


A.k.a. [[Inheritance of Acquired Traits]]. See also [[Evolutionary Levels]] and [[Superpowerful Genetics]]. Compare [[In the Blood]] for the morality version. [[Generation Xerox]] is this trope [[Up to Eleven]]; the kids inherit more than just their parent's physical traits. [[Sub Trope]] of [[All Theories Are True]]. [[Muggle Born of Mages]] is the [[Subversion]]. [[Randomly Gifted]] is an [[Aversion]].
A.k.a. [[Inheritance of Acquired Traits]]. See also [[Evolutionary Levels]] and [[Superpowerful Genetics]]. Compare [[In the Blood]] for the morality version. [[Generation Xerox]] is this trope [[Up to Eleven]]; the kids inherit more than just their parent's physical traits. [[Sub-Trope]] of [[All Theories Are True]]. [[Muggle Born of Mages]] is the [[Subversion]]. [[Randomly-Gifted]] is an [[Aversion]].
{{examples}}
{{examples}}


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* Man-Bat gained bat-themed powers artificially but his daughter inherited them. When consulted about this, [[Batman]] was skeptical, and explicitly said that acquired characteristics can't be inherited (despite the number of times that exactly that has happened in the DCU).
* Man-Bat gained bat-themed powers artificially but his daughter inherited them. When consulted about this, [[Batman]] was skeptical, and explicitly said that acquired characteristics can't be inherited (despite the number of times that exactly that has happened in the DCU).
** The "Battle For The Cowl" miniseries/crossover began to fix that. Another villain points out to Langstrom that it's ''impossible'' for a mix of common chemicals to have that effect, that the formula was a psychological crutch for the activation of Langstrom's innate super-powers. And indeed, in that same issue he manages to transform ''without the formula'' and keep control (to a degree).
** The "Battle For The Cowl" miniseries/crossover began to fix that. Another villain points out to Langstrom that it's ''impossible'' for a mix of common chemicals to have that effect, that the formula was a psychological crutch for the activation of Langstrom's innate super-powers. And indeed, in that same issue he manages to transform ''without the formula'' and keep control (to a degree).
** Which didn't actually make any sense, considering this was maybe a year after [[Daddy's Little Villain|Talia al-Ghul]] managed to steal the formula and use it [[Grant Morrisons Batman (Comic Book)|create an army of ninja Man-Bats]].
** Which didn't actually make any sense, considering this was maybe a year after [[Daddy's Little Villain|Talia al-Ghul]] managed to steal the formula and use it [[Grant Morrison's Batman (Comic Book)|create an army of ninja Man-Bats]].
* A mainstay of the [[Marvel Universe]], where everything from [[Spider-Man (Comic Book)|Spider-Man]]'s radioactive spider bite to the [[Fantastic Four (Comic Book)|Fantastic Four]]'s cosmic ray exposure can be inherited. Generally, it's revealed that the various doses of radiation ''did'' change their DNA, so the offspring of [[Freak Lab Accident]] Silver Agers can officially be called Mutants.
* A mainstay of the [[Marvel Universe]], where everything from [[Spider-Man (Comic Book)|Spider-Man]]'s radioactive spider bite to the [[Fantastic Four (Comic Book)|Fantastic Four]]'s cosmic ray exposure can be inherited. Generally, it's revealed that the various doses of radiation ''did'' change their DNA, so the offspring of [[Freak Lab Accident]] Silver Agers can officially be called Mutants.
** The official Marvel parlance is Mutants for X-gene variations on the human template, and ''mutates'' for those like Spider-Man who've been mutated by some external factor. How the public magically tells the difference is another question altogether.
** The official Marvel parlance is Mutants for X-gene variations on the human template, and ''mutates'' for those like Spider-Man who've been mutated by some external factor. How the public magically tells the difference is another question altogether.
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* The commercials for ''[[Birds of Prey]]'' made a great deal out of the idea that the daughter of [[Batman]] and Catwoman would have inherited her father's drive to fight crime and her mother's drive to commit it. She also inherited cat-like abilities from her mother (who was a metahuman in the television show, despite her comic book [[Badass Normal]] characterization).
* The commercials for ''[[Birds of Prey]]'' made a great deal out of the idea that the daughter of [[Batman]] and Catwoman would have inherited her father's drive to fight crime and her mother's drive to commit it. She also inherited cat-like abilities from her mother (who was a metahuman in the television show, despite her comic book [[Badass Normal]] characterization).
* Used oddly in ''[[Psych]]'' where Gus insists that he can handle spicy (Indian) food because he's 1/4 Jamaican. His grandparent or parent may have cooked spicy Jamaican foods a lot, but it's not mentioned.
* Used oddly in ''[[Psych]]'' where Gus insists that he can handle spicy (Indian) food because he's 1/4 Jamaican. His grandparent or parent may have cooked spicy Jamaican foods a lot, but it's not mentioned.
* In a season two episode of ''[[Babylon 5 (TV)|Babylon 5]]'', it is revealed that the PsiCorps have developed a treatment that turns telepaths into empaths, and that they want to subject Talia to the treatment and then have her get with the other empath to make lots of empath babies, proving that they are not only evil, they also [[You Fail Biology Forever|Fail Biology Forever]].
* In a season two episode of ''[[Babylon 5]]'', it is revealed that the PsiCorps have developed a treatment that turns telepaths into empaths, and that they want to subject Talia to the treatment and then have her get with the other empath to make lots of empath babies, proving that they are not only evil, they also [[You Fail Biology Forever|Fail Biology Forever]].
* In ''[[Angel (TV)|Angel]]'', [[The Scrappy|Connor]] manages to inherit all the advantages of his vampire parents without actually being a vampire. How this works is never explained, but then, how two [[Our Vampires Are Different|vampires]] had a baby in the first place is never explained either.
* In ''[[Angel (TV)|Angel]]'', [[The Scrappy|Connor]] manages to inherit all the advantages of his vampire parents without actually being a vampire. How this works is never explained, but then, how two [[Our Vampires Are Different|vampires]] had a baby in the first place is never explained either.
* On ''[[The Mentalist]]'', an internal affairs officer tells [[Lawful Good]] [[Fair Cop]] Rigsby it's not his fault if he's prone to crime, since his father was a biker, and evidence suggests criminality could run in the family. He is [[Berserk Button|not happy]]. Also subverted in that everybody on the team is seen to be very different from their parents (who include the aforementioned biker, an abusive drunk, and a particularly nasty conman).
* On ''[[The Mentalist]]'', an internal affairs officer tells [[Lawful Good]] [[Fair Cop]] Rigsby it's not his fault if he's prone to crime, since his father was a biker, and evidence suggests criminality could run in the family. He is [[Berserk Button|not happy]]. Also subverted in that everybody on the team is seen to be very different from their parents (who include the aforementioned biker, an abusive drunk, and a particularly nasty conman).
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== Real Life ==
== Real Life ==
* As mentioned above, recently, it's been discovered that some acquired changes ''can'' be inherited, albeit in a weaker, less permanent, and (probably) less important form. The study of this is called [http://en.wikipedia.org/wiki/Epigenetics epigenetics]. Basically, chemical changes to the DNA can help inactivate or activate parts of it -- and because it's still DNA, these can be passed on. For instance, malnutrition might mean that your DNA doesn't methylate properly while you're growing up, and conditions in the womb can affect development of the fetus, which can pass on some information about the mother's environment -- how much food is available, and so on -- to the child. [[Science Marches On]]. <ref>Note that technically epigenetics is the study of DNA being turned on and off ''in general'', something that happens all the time in a living organism. What's recent is the discovery that these normally short-lived changes can sometimes last long enough to be inherited.</ref>
* As mentioned above, recently, it's been discovered that some acquired changes ''can'' be inherited, albeit in a weaker, less permanent, and (probably) less important form. The study of this is called [[wikipedia:Epigenetics|epigenetics]]. Basically, chemical changes to the DNA can help inactivate or activate parts of it -- and because it's still DNA, these can be passed on. For instance, malnutrition might mean that your DNA doesn't methylate properly while you're growing up, and conditions in the womb can affect development of the fetus, which can pass on some information about the mother's environment -- how much food is available, and so on -- to the child. [[Science Marches On]]. <ref>Note that technically epigenetics is the study of DNA being turned on and off ''in general'', something that happens all the time in a living organism. What's recent is the discovery that these normally short-lived changes can sometimes last long enough to be inherited.</ref>
** Experiments in rats have shown that cross-fostered pups of mothers who exhibit attentive parental care (licking and grooming behaviors, in particular) end up, through the action of acetylation and methylation, having less of an "anxious" response to stressors. When these rats become mothers themselves, they exhibit the same sort of parental behavior towards their pups, so it is a continuing cycle -- independent of genotype, the maternal attention is propagated to the next generation and so on.
** Experiments in rats have shown that cross-fostered pups of mothers who exhibit attentive parental care (licking and grooming behaviors, in particular) end up, through the action of acetylation and methylation, having less of an "anxious" response to stressors. When these rats become mothers themselves, they exhibit the same sort of parental behavior towards their pups, so it is a continuing cycle -- independent of genotype, the maternal attention is propagated to the next generation and so on.
* Endosymbiosis is the current prevailing theory on the origin of certain organelles--mainly the mitochondria and chloroplasts--in the cells of eukaryotic (multicellular) life. The theory is that the organelles were originally entirely separate single celled organisms that were eaten by the eukaryotic cell but not digested properly. When the larger cell divided, so would the organelles, and so they were passed onto descendants without any genetic change.
* Endosymbiosis is the current prevailing theory on the origin of certain organelles--mainly the mitochondria and chloroplasts--in the cells of eukaryotic (multicellular) life. The theory is that the organelles were originally entirely separate single celled organisms that were eaten by the eukaryotic cell but not digested properly. When the larger cell divided, so would the organelles, and so they were passed onto descendants without any genetic change.
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* In the late 1800s, there were several experiments to test Lamarck's theories, including one carried out in Germany that involved cutting off mice's tails to see if their children would be born with shorter, or no, tails.
* In the late 1800s, there were several experiments to test Lamarck's theories, including one carried out in Germany that involved cutting off mice's tails to see if their children would be born with shorter, or no, tails.
** As [[Isaac Asimov]] (or [[Carl Sagan]]?) has pointed out: Jewish boys have been circumcised for many generations, but still every Jewish boy is born with a foreskin.
** As [[Isaac Asimov]] (or [[Carl Sagan]]?) has pointed out: Jewish boys have been circumcised for many generations, but still every Jewish boy is born with a foreskin.
*** Unless they are [http://en.wikipedia.org/wiki/Aposthia aposthic].
*** Unless they are [[wikipedia:Aposthia|aposthic]].
* Some genetic diseases like Myotonic Dystrophy are subject to "[http://en.wikipedia.org/wiki/Genetic_anticipation Anticipation]". This means that if one or the two parents show a slight variant of the disease, the children will not only inherit the disease, but often suffer a harsher and earlier form of it, and this will only increase with each new generation. The reason is that the disease is caused by having more than a determined number of repetitions of a certain gene sequence and since 1) everybody suffers mutations during its life (though they rarely have any effect or show up at all) and 2) repetitions are among the most common mutations, people with more repetitions are more likely to gain even more, and thus to pass a larger sequence to their descendants to begin with. It has been discovered recently that other diseases are also linked to repeated sequences (such as Fragile X Syndrome, Kennedy's Disease and Huntington's Chorea) and as result these might be subject to anticipation as well.
* Some genetic diseases like Myotonic Dystrophy are subject to "[[wikipedia:Genetic anticipation|Anticipation]]". This means that if one or the two parents show a slight variant of the disease, the children will not only inherit the disease, but often suffer a harsher and earlier form of it, and this will only increase with each new generation. The reason is that the disease is caused by having more than a determined number of repetitions of a certain gene sequence and since 1) everybody suffers mutations during its life (though they rarely have any effect or show up at all) and 2) repetitions are among the most common mutations, people with more repetitions are more likely to gain even more, and thus to pass a larger sequence to their descendants to begin with. It has been discovered recently that other diseases are also linked to repeated sequences (such as Fragile X Syndrome, Kennedy's Disease and Huntington's Chorea) and as result these might be subject to anticipation as well.
** Anticipation is completely and utterly non-Lamarckian. The conditions subject to anticipation are congenital, although some of them (particularly Huntington's Disease) do only show up later in life, due to, for example, being caused by a gradual accumulation of a harmful protein (HD). When the reproductive cells divide (to make sperm or eggs), there is a high chance that the genetic code repeats which cause these conditions will expand due to the replication apparatus 'slipping' or 'stuttering' on the repetitive areas (it's more complex than that, of course, but most of the readers don't have genetics degrees). The reason these conditions can become worse down the generations is not due to any acquired factors from the parent's life, it's because there are problems with the creation of their gametes. Some conditions commonly showing anticipation effects are Huntington's Disease, Fragile X Syndrome and Myotonic Dystrophy.
** Anticipation is completely and utterly non-Lamarckian. The conditions subject to anticipation are congenital, although some of them (particularly Huntington's Disease) do only show up later in life, due to, for example, being caused by a gradual accumulation of a harmful protein (HD). When the reproductive cells divide (to make sperm or eggs), there is a high chance that the genetic code repeats which cause these conditions will expand due to the replication apparatus 'slipping' or 'stuttering' on the repetitive areas (it's more complex than that, of course, but most of the readers don't have genetics degrees). The reason these conditions can become worse down the generations is not due to any acquired factors from the parent's life, it's because there are problems with the creation of their gametes. Some conditions commonly showing anticipation effects are Huntington's Disease, Fragile X Syndrome and Myotonic Dystrophy.
* Several percent of human genome is [http://en.wikipedia.org/wiki/Endogenous_retrovirus Endogenous retrovirus] DNA. One of our ancestors got infected by a retrovirus, which made its way into the said ancestor's germ cells. Bingo! Now his/her children inherit the virus DNA with the parent DNA, until this day. Some of the endogenous retrovirus DNA has since mutated and became junk DNA ''sensu stricto'', but some of those viruses are actually still active, for better or for worse (like helping the embryo implant in the womb, or playing a role in several diseases). It is highly unlikely the original infection was via a [[Spider-Man|spider bite]], though, or it would be a rare Lamarckian [[Funny Aneurysm Moment]].
* Several percent of human genome is [[wikipedia:Endogenous retrovirus|Endogenous retrovirus]] DNA. One of our ancestors got infected by a retrovirus, which made its way into the said ancestor's germ cells. Bingo! Now his/her children inherit the virus DNA with the parent DNA, until this day. Some of the endogenous retrovirus DNA has since mutated and became junk DNA ''sensu stricto'', but some of those viruses are actually still active, for better or for worse (like helping the embryo implant in the womb, or playing a role in several diseases). It is highly unlikely the original infection was via a [[Spider-Man|spider bite]], though, or it would be a rare Lamarckian [[Funny Aneurysm Moment]].
* Cultural evolution ''does'' work like this, as ideas acquired in life (or [[Memetic Mutation|mutations thereof]]) can be taught to one's offspring.
* Cultural evolution ''does'' work like this, as ideas acquired in life (or [[Memetic Mutation|mutations thereof]]) can be taught to one's offspring.
* If your parents are 'intelligentsia' or 'politicians' or 'military middle class' you'll usually be expected to be good at the same sort of jobs, and be expected to grow up as one as well.
* If your parents are 'intelligentsia' or 'politicians' or 'military middle class' you'll usually be expected to be good at the same sort of jobs, and be expected to grow up as one as well.
** Before the development of trade schools and formal educations, most jobs were like this; boys were expected to grow up and take their fathers' jobs, especially more mundane positions, like farming, carpentry, and other manual labor jobs. If a boy wanted to learn a trade different from his father's, he would have to become an apprentice to someone else. It was simply easier to become an apprentice to your own father. Younger children might have had more options, though, because they weren't expected to inherit the family business.
** Before the development of trade schools and formal educations, most jobs were like this; boys were expected to grow up and take their fathers' jobs, especially more mundane positions, like farming, carpentry, and other manual labor jobs. If a boy wanted to learn a trade different from his father's, he would have to become an apprentice to someone else. It was simply easier to become an apprentice to your own father. Younger children might have had more options, though, because they weren't expected to inherit the family business.
* Briefly thought to have occured with second-generation phocomelia, a congenital deformity primarily seen in infants whose mothers used thalidomide during pregnancy. Although the damage inflicted on these unborn children was environmental in origin, a small number of phocomeliacs subsequently grew up, married one another, and (rarely) produced phocomeliac children. Further investigation subverted this trope, revealing that children who'd been deformed by thalidomide had ''already'' been genetically predisposed to suffer such developmental flaws in response to chemical contaminants, and their second-generation children inherited a double dose of that susceptibility, making them subject to phocomelia even in the absence of thalidomide.
* Briefly thought to have occured with second-generation phocomelia, a congenital deformity primarily seen in infants whose mothers used thalidomide during pregnancy. Although the damage inflicted on these unborn children was environmental in origin, a small number of phocomeliacs subsequently grew up, married one another, and (rarely) produced phocomeliac children. Further investigation subverted this trope, revealing that children who'd been deformed by thalidomide had ''already'' been genetically predisposed to suffer such developmental flaws in response to chemical contaminants, and their second-generation children inherited a double dose of that susceptibility, making them subject to phocomelia even in the absence of thalidomide.
* To a certain extent, this is true anyway, though less based upon what your parents did, and more what they ''[[I Did What I Had to Do|needed to do]] to survive.'' For example, native-born Koreans [http://en.wikipedia.org/wiki/Body_odor don't sweat the same way], because not sweating is a way to survive in cold climates. Likewise tanning skin is likely an adaptation to very sunny climates. The process, however, is reversible over time if the need suddenly no longer exists.
* To a certain extent, this is true anyway, though less based upon what your parents did, and more what they ''[[I Did What I Had to Do|needed to do]] to survive.'' For example, native-born Koreans [[wikipedia:Body odor|don't sweat the same way]], because not sweating is a way to survive in cold climates. Likewise tanning skin is likely an adaptation to very sunny climates. The process, however, is reversible over time if the need suddenly no longer exists.
* [http://www.freakonomics.com/2011/06/07/the-economist-guide-to-parenting-full-transcript/ Analysis of adopted Korean War orphans] showed a surprising amount of genetic influence over the life of the child. The education level of the adopted parents had a puny effect on the adopted child's education (each year of maternal education translated to a four-week boost to the child) and the adopted parents had no effect at all on the child's adult income.
* [http://www.freakonomics.com/2011/06/07/the-economist-guide-to-parenting-full-transcript/ Analysis of adopted Korean War orphans] showed a surprising amount of genetic influence over the life of the child. The education level of the adopted parents had a puny effect on the adopted child's education (each year of maternal education translated to a four-week boost to the child) and the adopted parents had no effect at all on the child's adult income.


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[[Category:Badass]]
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[[Category:Lamarck Was Right]]
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