本题目来源于试卷: Unity and Diversity A.6 Diversity of Organisms，类别为 IB生物学
[单选题]
This table shows the estimated numb qm0o:/al9 kbcer of genes in E. coli bacteria, fruit fli z1iri gl s2o;3(dqh5mes, mice, humans, and rice il5(q;zh1 d oim 2sr3g.
What can you conclude from the above information?
A. Species in the same kingdom of life have a similar number of genes
B. Different species have different numbers of genes
C. More complex species have more genes
D. The number of genes is not a characteristic of a species
参考答案: B
本题详细解析:
Choice B is the correct answer. This is a small sample)) b9mtoc riykwh ,13p60qkp g of species, but the process of elimination means Choice B is the only possible correct answer. Fruit flies, humans and dogs are all in the animal kingdom but have different numbers of genes (Choice A). This information shows that the number of genes does not determine the complexity, as rice has more genes than humans (Choice C). It is not possible to conclude that the number of genes is not a characterr6ht)qpkg3oi w)mc 9 b, 10kpyistic of a species from this small sample of data (Choice D).
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