39. According to the biological species concept, for speciation to occur,_________.
(A) the number of chromosomes in the gene pool must change
(B) changes to centromere location or chromosome size must occur
(C) large numbers of genes that affect numerous phenotypic traits must change
(D) at least one gene, affecting one reproductive barrier, must change

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統計: A(0), B(1), C(0), D(2), E(0) #3056702

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#7111151
題目解析 這道題目探討的是生物物種概念...
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#7111152
1. 題目解析 這道題目考察的是「生物物...
(共 956 字,隱藏中)
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