How do primates diversify their genes and avoid birth defects?

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In summary, the conversation discusses the possibility of young primates being driven away from their birth groups and the potential differences between males and females in this process. It also raises the question of how primates avoid birth defects when mating and the idea that incest may not be as big of a problem as it is often portrayed. The article referenced offers some perspective on the issue, suggesting that detrimental genes may be weeded out faster in societies that practice incest.
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I was wondering if there are any studies that have researched how other primates diversify their genes?

Do young primates get driven away from the groups they get born into after they age to maturity? Is there a difference between what happens to males vs. females?

And if some of them stick around, how do they "monitor" for the genetic diversity when mating to avoid birth defects? (Assuming that they have this same problem as humans)

Any thoughts appreciated!

p.s. I did find some good information in this article:
https://www.nature.com/scitable/knowledge/library/primate-sociality-and-social-systems-58068905
 
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I do not know the answer to your question but would like to offer some perspective. It is possible that incest is not nearly the problem it is made out to be for two reasons.
1. In order for incest to be a factor in birth defects, the degenerate genes would have to be both rare and recessive. If not rare, there wouldn't be a significantly greater chance of acquiring them through incest than from the population at large. If not recessive, then if either partner carried the gene, it could be passed on to the offspring.
2. Any birth defects resulting from incest would make the offspring less likely to reproduce. It may be that deformed babies are killed immediately. Thus in a society that practices incest, detrimental genes should be weeded out faster.
 
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That was very helpful, thank you!
 

1. How do primates diversify their genes?

Primates diversify their genes through a process called genetic recombination, which occurs during meiosis. During this process, genetic material from each parent is mixed and matched, leading to new combinations of genes in the offspring. This results in genetic diversity within a population of primates.

2. What is the role of natural selection in primate gene diversification?

Natural selection plays a crucial role in primate gene diversification. It is the process by which individuals with advantageous genetic traits are more likely to survive and reproduce, passing on those traits to their offspring. Over time, this leads to a diversification of genes within a population as certain traits become more prevalent.

3. How do primates avoid birth defects?

Primates have evolved various mechanisms to avoid birth defects. One of the main ways they do this is through sexual reproduction, which allows for genetic recombination and natural selection to occur, reducing the likelihood of harmful genetic mutations. Additionally, primates have a longer gestation period compared to other mammals, allowing for more time for proper development and reducing the risk of birth defects.

4. What role do environmental factors play in primate gene diversification and birth defects?

Environmental factors can have a significant impact on primate gene diversification and the occurrence of birth defects. Exposure to certain toxins or pollutants can cause genetic mutations, leading to birth defects. Additionally, environmental factors such as food availability and climate can also influence which genes are selected for and passed down to future generations.

5. How do primates maintain genetic diversity within their populations?

Primates maintain genetic diversity within their populations through a combination of factors. Sexual reproduction, as mentioned earlier, is a key factor in diversifying genes. Additionally, primates may also migrate between different populations, introducing new genes and preventing inbreeding. Some species also exhibit social behaviors that promote genetic diversity, such as forming mixed groups or engaging in extra-pair mating.

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