Can Learned Behaviors Affect Genetic Inheritance?

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Discussion Overview

The discussion centers around the question of whether learned behaviors can affect genetic inheritance, exploring the relationship between learned habits, environmental influences, and genetic transmission. It touches on concepts from evolutionary biology and epigenetics.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants propose that learned behaviors cannot be passed on genetically, suggesting that children may adopt habits from parents through observation and mimicry.
  • Others argue that while learned behaviors themselves do not affect genetic material, environmental factors can have epigenetic effects that may influence offspring, such as exposure to famine or mutagens.
  • A later reply questions the implications of epigenetic changes and their relationship to learned behaviors, indicating a nuanced view of how environment interacts with genetics.

Areas of Agreement / Disagreement

Participants generally agree that learned behaviors are not directly passed on genetically, but there is disagreement regarding the extent and nature of environmental influences on genetic inheritance, particularly through epigenetic mechanisms.

Contextual Notes

Limitations include the complexity of defining learned behaviors versus genetic inheritance, and the need for further exploration of how environmental factors interact with genetic material without resolving the underlying mechanisms.

daflora
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hi guys.do u think some habit learned by someone can be passsed on to his or her children?
 
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It certainly cannot be passed on genetically, but upbringing and environment play roles as well. So a child could pick up a habit from their parents simply because the child sees the parent performing the behavior and wants to mimic it.
 
thanks a lot.but i have an impression that that has a lot to do with evolution.is that the case?
 
There are epigenetic effects - environmental effects on genetic material - that are passed on to offspring. Some are obvious - exposure to radiation or mutagens - increases the likelihood of genetic defect diseases in children of parents who were exposed.

Another effect is the apparent DNA effects found in mothers and offspring living after a famine
http://www.bio-medicine.org/medicine-news-1/First-evidence-that-prenatal-exposure-to-famine-may-lead-to-persistent-epigenetic-changes-28269-1/

So this does indicate that while envrionment can damage DNA, learning in and of itself does not damage DNA.
 

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