本题目来源于试卷: Unity and Diversity A.5 Viruses，类别为 IB生物学
[单选题]
Which is not a factor in the rapid evolutm4zx-wposl 2pr nj-;0t;ntx 1if w)9tion of the hu1( wi)dplr7b jz./ivtman immunodeficiency virus()b pviiz/ rw7tj.1dl?
A. Genetic recombination
B. High mutation rate
C. Slow replication rate
D. Genetic diversity of host population
参考答案: C
本题详细解析:
Choice C is correct b1wck0kzfqv:2 3w(origm y8f 3 ecause a slow replication rate is not a factor in the rapid evolution of HIV. Genetic recombination occurs when many strains of the virus infect the same host, and a new combination of genetic material is observed, which leads to changes in the virus (evolution) over time (Choice A). Mutations occur rapidly in HIV because it is a single-stranded RNA virus and lacks a mechanism to proofread the genome. The introductio3qfgko8m(irk fw2w: cyz13v0n of this variation leads to evolution (Choice B). The genome of humans and the HIV host population, has high genetic diversity. Such diversity in the genome may provide a selective advantage for some HIV strains (Choice D).
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