42. What is an allele?
(A)the dominant form of a gene
(B)the recessive form of a gene
(C)a type of chromosome
(D)a variety of pea plant used by Mendel
(E)an alternative version of a gene
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統計: A(3), B(2), C(6), D(4), E(21) #3149502
統計: A(3), B(2), C(6), D(4), E(21) #3149502