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讲座6-起源和维护的遗传变异Lecture 6 - The Origin and Maintenance of Genetic Variation |
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| 课程网址: | http://videolectures.net/yaleeeb122f07_stearns_lec06/ |
| 主讲教师: | Stephen C. Stearns |
| 开课单位: | 耶鲁大学 |
| 开课时间: | 2010-04-17 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | 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. Reading assignment: Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 5 |
| 关 键 词: | 突变; 遗传多样性; 等位基因性重组; 进化; 固定利率 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-07-05：liush |
| 阅读次数: | 43 |