Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.
但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。
| 单词 | Purifying selection |
| 释义 |
Purifying selection
英语例句库
Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality. 但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。
英语百科
Negative selection (natural selection)（重定向自Purifying selection）
In natural selection, negative selection or purifying selection is the selective removal of alleles that are deleterious. This can result in stabilizing selection through the purging of deleterious variations that arise. Purging of deleterious alleles can be achieved on the population genetics level, with as little as a single point mutation being the unit of selection. In such a case, carriers of the harmful point mutation have fewer offspring each generation, reducing the frequency of the mutation in the gene pool. |
| 随便看 |
|
英汉双解词典包含3607232条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。