D*****r
发帖数: 6791 | 1 Stephen C Stearns在耶鲁的进化论与生态学课程的第6讲
http://www.youtube.com/watch?v=ZzkLYZCzHXk
The Origin and Maintenance of Genetic Variation
Overview:
Mutations are the origin of genetic diversity. Mutations introduce new
traits, while selection eliminates most of the reproductively unsuccessful
traits. Sexual recombination of alleles can also account for much of the
genetic diversity in sexual species. In some instances, population size can
affect diversity and rates of evolution and fixation, but in other cases
population size does not matter. | E*****m
发帖数: 25615 | 2 有時候你必須承認無知的力量更強大。
不會有基看的，白貼了。 | x****g
发帖数: 4008 | 3 Thanks for sharing
can
【在 D*****r 的大作中提到】
: Stephen C Stearns在耶鲁的进化论与生态学课程的第6讲
: http://www.youtube.com/watch?v=ZzkLYZCzHXk
: The Origin and Maintenance of Genetic Variation
: Overview:
: Mutations are the origin of genetic diversity. Mutations introduce new
: traits, while selection eliminates most of the reproductively unsuccessful
: traits. Sexual recombination of alleles can also account for much of the
: genetic diversity in sexual species. In some instances, population size can
: affect diversity and rates of evolution and fixation, but in other cases
: population size does not matter.
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