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A mutation (is result) of a definite biochemical (change) in a gene that causes the offspring to vary in (some) characteristic (
A mutation (is result) of a definite biochemical (change) in a gene that causes the offspring to vary in (some) characteristic (
admin
2004-12-30
47
问题
A mutation (is result) of a definite biochemical (change) in a gene that causes the offspring to vary in (some) characteristic (from) the parents.
选项
A、is result
B、change
C、some
D、from
答案
A
解析
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