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About passing the genes

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About passing the genes
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Bango SkankPosts: 216Joined: Sun Jun 22, 2014 4:15 amLocation: Finland Gender: Male

About passing the genes

Are there any studies & predictions done about effects of having only one person to pass genes with (marriage)?

I mean let's think this purely on biological perspective. As far as i know the only goal of evolution is to reproduce and thus pass the genes. So in that perspective, a guy who breeds with 10 women is better (a victor in biological sense) than a guy that breeds with one (Marriage and one partner is kinda of selective breeding i think).

So i'm asking what is the net effect on population in genetic level if we compare one breeding partner vs. multiple breeding partners.

I'd appreciate if the answers were in layman's terms.
"There are those to whom knowledge is a shield, and those to whom it is a weapon. Neither view is balanced, but one is less unwise."
Wed Dec 27, 2017 7:57 pm
hackenslashLime TordUser avatarPosts: 2439Joined: Mon Feb 23, 2009 3:43 pm Gender: Cake

Post Re: About passing the genes

I don't know of any specific studies offhand, but I suspect it won't be that straightforward. The relationship strategy contains quite a few variables besides the obvious genetic diversity component - the only clear advantage to polygamy I can think of off the top of my head - that would affect whether monogamy was a useful survival strategy in evolutionary terms. In species with a slow generational turnaround and a small enough fitness coefficient, the monogamous relationship provides clear advantages in that it has a greater rate against continuance of the genetic line.

My feeling is that it's going to involve quite a large number of variables, not all of which are going to be easily amenable to study.
Wed Dec 27, 2017 8:25 pm
Dragan GlasContributorUser avatarPosts: 3179Joined: Mon Dec 14, 2009 1:55 amLocation: Ireland Gender: Male

Post Re: About passing the genes

Greetings,

Although the idea of monogamy is a recent cultural phenomenon, there is something of a evolutionary driver:

The evolution of monogamy in response to partner scarcity

Kindest regards,

James
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"The Word of God is the Creation we behold and it is in this Word, which no human invention can counterfeit or alter, that God speaketh universally to man."
The Age Of Reason
Wed Dec 27, 2017 9:45 pm
SparhafocPosts: 2458Joined: Fri Jun 23, 2017 6:48 am

Post Re: About passing the genes

Bango Skank wrote:Are there any studies & predictions done about effects of having only one person to pass genes with (marriage)?

I mean let's think this purely on biological perspective. As far as i know the only goal of evolution is to reproduce and thus pass the genes. So in that perspective, a guy who breeds with 10 women is better (a victor in biological sense) than a guy that breeds with one (Marriage and one partner is kinda of selective breeding i think).

So i'm asking what is the net effect on population in genetic level if we compare one breeding partner vs. multiple breeding partners.

I'd appreciate if the answers were in layman's terms.



There's a raft of mitigating factors. Humans invest heavily into child-raising, spending 15-20 years (or more) supporting their few infants, while other species make produce millions of offspring by dispersing sperm & egg and leaving their success down to numbers and attrition.

Humans produce sperm & eggs all year round, rather than in particular seasons, which can be seen as an adaptation towards monogamy and frequent sex.

So what would be the effect on the population were humans to suddenly switch to polygamy?

Well, it's likely that fewer males would be successful breeding, as odd as that may seem, because competition for any given female would be higher. A polygamous species actually needs a different gender balance with more females than males because most males thereby are essentially outside the gene pool. So we might see, over the long term, an adaptation towards less males and more females.

We might also see females' estrous cycle become more pronounced with seasonal periods of sexual receptiveness.

In terms of the distribution of alleles in a population, less variation could be expected (although it would take a very long time) because fewer males would be contributing - the bar for passing on genes is higher.

In the very long term, we might even see a dramatic change in the human strategy of parental investment with children maturing quicker, freeing up their parents resources to make more offspring.
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Thu Dec 28, 2017 6:09 am
SparhafocPosts: 2458Joined: Fri Jun 23, 2017 6:48 am

Post Re: About passing the genes

As chance would have it, a story on this just popped up for me...

http://www.bbc.com/future/story/2017072 ... c-disaster
"a reprehensible human being"
Beliefs are, by definition, things we don't know to be true.
Thu Dec 28, 2017 4:30 pm
he_who_is_nobodyBloggerUser avatarPosts: 3480Joined: Tue Feb 24, 2009 1:36 amLocation: Albuquerque, New Mexico Gender: Male

Post Re: About passing the genes

One mistake you are making this thinking that just having offspring is a plus for evolution. A species needs to have offspring that also reproduce. Thus, a measured for a successful parent is not how many children it has, but how many grandchildren it has.

As has been pointed out by others, humans have a long period of childhood in which the parents play a huge roll in making sure the child survives. If a male has sex with multiple partner, has ten or so children, but only one or two make it to adulthood, they would see less success than a male that mated with one partner, nurtured his children, and six of them made it to adulthood. The promiscuous male has more children, but in the long run fewer grandchildren, thus less over all fitness.

The field of Human Evolutionary Ecology studies this. If you like, I can find some of the papers I read about this or the titles of a few text books I used.
_BONES AND FOSSILS = LOVE_
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Thu Dec 28, 2017 6:58 pm
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Bango SkankPosts: 216Joined: Sun Jun 22, 2014 4:15 amLocation: Finland Gender: Male

Post Re: About passing the genes

Sparhafoc wrote:As chance would have it, a story on this just popped up for me...

http://www.bbc.com/future/story/2017072 ... c-disaster


Interesting...yet sad article. And you need at least 3 wives to get in heaven? That's beyond stupid.

he_who_is_nobody wrote:One mistake you are making this thinking that just having offspring is a plus for evolution. A species needs to have offspring that also reproduce. Thus, a measured for a successful parent is not how many children it has, but how many grandchildren it has.


Yes, it was stupid mistake. I should have put more thought on this before jumping to post.

he_who_is_nobody wrote:The field of Human Evolutionary Ecology studies this. If you like, I can find some of the papers I read about this or the titles of a few text books I used.


Well, it was a bit of shower thought to be honest and i received multiple answers to my satisfy my curiosity. Are those books and papers aimed for popular audience? My understanding of evolution is not so good, so i don't get much out of them if they are academic level.
"There are those to whom knowledge is a shield, and those to whom it is a weapon. Neither view is balanced, but one is less unwise."
Thu Dec 28, 2017 8:28 pm
he_who_is_nobodyBloggerUser avatarPosts: 3480Joined: Tue Feb 24, 2009 1:36 amLocation: Albuquerque, New Mexico Gender: Male

Post Re: About passing the genes

Bango Skank wrote:
he_who_is_nobody wrote:The field of Human Evolutionary Ecology studies this. If you like, I can find some of the papers I read about this or the titles of a few text books I used.


Well, it was a bit of shower thought to be honest and i received multiple answers to my satisfy my curiosity. Are those books and papers aimed for popular audience? My understanding of evolution is not so good, so i don't get much out of them if they are academic level.


The papers are peer-reviewed articles and the text books are college level, thus they would not be much help.
_BONES AND FOSSILS = LOVE_
(_'--------------------'_)
(_.--------------------._)
Fri Dec 29, 2017 5:29 pm
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