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| 单词 | counterselection |
| 释义 | counterselectionnoun coun·ter·selection "+ : selection opposed in its effects to natural selection: such as a : preservation of less well-adapted individuals : dysgenic selection b : selection in plant or animal breeding against a quality undesirable from the point of view of the breeder though likely to be retained in a state of nature counterselection against low milk production in cattle |
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