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 facto3xp( 00jhyhq qk g3nm;r i66.pd p5xzgp in the rapid evolution of the human immunodeficiency virus?pip6x zpd.5g 6
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 because a slow replication rat2. k* hd98sek4z-/f fan/jls 2eia iihe 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 introduction of this variation leads to evolution (Choice B). The genome of humans and the HIV host population, has high genetic diversit2k /2hk8.*i4if h-ae a/in9 s zledfsjy. Such diversity in the genome may provide a selective advantage for some HIV strains (Choice D).
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