本题目来源于试卷: Unity and Diversity A.8 Evolution and Speciation，类别为 IB生物学
[单选题]
The table shows factorsi,e9)1 halkpzs0 jm:a5 j zw-e that can result in speciatiokssrjrd / ;+1 t:7wrcl-, lkiun. Which word is matched to the correct de sk7+ :w rjl/l1-dkt,ic;rsrufinition?
A. Word is Polyploidy ;Definition is Having two complete sets of chromosomes
B. Word is Sexual reproduction;Definition is The combining of genetic information from two individuals
C. Word is Reproductive isolation ;Definition is Species breeding to produce infertile offspring
D. Word is Mutations;Definition is Random changes to the amino acid sequence
参考答案: B
本题详细解析:
Choice A is incorrect because the definition of polyploidy is having more than two complete sets of chromosomes. Choice C is incorrect, as reproductive isolation is the inability of closely related species to produce fertile offspring due to behavioural, temporal or geographical isolation. Choice D is incorrect, as mutations are random changes to the DNA base sequence.
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