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| Author | Topic: How do you define the word Evolution? | |||||||||||||||||||||||||||||||||||||||||||
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RAZD Member  Posts: 20056 From: the other end of the sidewalk Joined: Member Rating: 3.3 |
And ... black is dominant ... so, the Hardy-Weinberg equation gives us: where p is one allele and q the other allele, so pq is heterozygous and the others are homozygous, The equation with {br} = 0.9 (making {BL} = .01) is = 0.81 + 0.18 + 0.01 and 81% are tan (homozygous) while 19% are black (1% homozygous and 18% heterozygous) and ~1 in 5 mice can utilize the lava bed habitat, and of those ~1 in 4 offspring will be tan and need to escape back to the tan soil habitat. Enjoy by our ability to understand Rebel☮American☆Zen☯Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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Taq Member  Posts: 7997 Joined: Member Rating: 3.8
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That was more of a guesstimate. The actual number is probably a bit lower since the black basalt outcroppings make up a small percentage of their overall range. Edited by Taq, : No reason given.
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RAZD Member Posts: 20056 From: the other end of the sidewalk Joined: Member Rating: 3.3 |
by our ability to understand Rebel☮American☆Zen☯Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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Pressie Member Posts: 2074 From: Pretoria, SA Joined: Member Rating: 2.6
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Stats are not always useless. It just prepares people for reality. Edited by Pressie, : No reason given.
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CRR Member (Idle past 473 days) Posts: 579 From: Australia Joined: |
I was talking about loss of function between the MC1R gene and the agouti-signaling protein. They are talking gain/loss of function as it relates to coat colour.. Dominant/recessive does not determine gain/loss of functional information. A normal light switch can be turned on or off. A broken light switch can result in a light permanently on (dominant) or permanently off (recessive); but the switch is broken in either case. Similarly with the MC1R gene. Edited by CRR, : Changed subtitle
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CRR Member (Idle past 473 days) Posts: 579 From: Australia Joined:
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They probably should be considered as two separate populations with gene flow between them.
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Taq Member Posts: 7997 Joined: Member Rating: 3.8
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You are claiming that any change, no matter what it is, is a broken switch. That is just denial.
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Taq Member Posts: 7997 Joined: Member Rating: 3.8
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+/- 1.8%. Don't forget the standard deviation.
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caffeine Member  Posts: 1682 From: Prague, Czech Republic Joined: Member Rating: 2.7 |
The alleles should only be expected to be in Hardy-Weinberg equilibrium in the absence of selection. Since both phenotypes are under selection, it's not relevant. The proportions will depend on the extent of the habitats that select for each colour morph.
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RAZD Member Posts: 20056 From: the other end of the sidewalk Joined: Member Rating: 3.3 |
Thanks by our ability to understand Rebel☮American☆Zen☯Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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dwise1 Member  Posts: 3646 Joined: Member Rating: 3.9
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At many colleges and universities in the USA we have the Osher Lifelong Learning Institutes (OLLI) program for adults 50+. They draw on the members' own expertise for their own classes and special lectures, plus members get buy parking on campus and are usually able to audit the regular university courses. However, locally all the OLLI courses and lectures are during regular work hours, so you pretty much have to be retired to participate. So I see auditing a population genetics course in my future ...
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Coyote Member (Idle past 337 days)  Posts: 6117 Joined: |
Good program! I've lectured there perhaps 10 times over the years. Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge. Belief gets in the way of learning--Robert A. Heinlein In the name of diversity, college student demands to be kept in ignorance of the culture that made diversity a value--StultisTheFool It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers If I am entitled to something, someone else is obliged to pay--Jerry Pournelle If a religion's teachings are true, then it should have nothing to fear from science...--dwise1 "Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity. Liberals claim to want to give a hearing to other views, but then are shocked and offended to discover that there are other points of view--William F. Buckley Jr.
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dwise1 Member Posts: 3646 Joined: Member Rating: 3.9 |
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RAZD Member Posts: 20056 From: the other end of the sidewalk Joined: Member Rating: 3.3
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I've been thinking of doing this too, especially as Brown University is a bicycle ride away and I could catch a lecture by Kenneth R. Miller. Enjoy by our ability to understand Rebel☮American☆Zen☯Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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CRR Member (Idle past 473 days) Posts: 579 From: Australia Joined: |
Not quite. The population will still be subject to the same selection forces even after it has adapted to the environment, however these will tend to stabilise the population rather than change it.
Both population groups will move towards equilibrium for their environment, which is why for H-W Equilibrium they should be considered as separate groups. However since the groups interact where the habitats meet there will also be gene flow between the two which will interfere with equilibrium being reached. Edited by CRR, : Changed subtitle
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