本题目来源于试卷: Continuity and Change D.8 Inheritance，类别为 IB生物学
[单选题]
The following table shows the diploid chromo n fe 5/s6l +hlav,u/cu7pp9zts 5 gst7,:/htgki am6l)say/mmome number of a range of species.
Which of these statements is correct?
A. The giant panda has more genes than the other species
B. The yellow fever mosquito has the fewest genes from these species
C. The gametes of carrots have 18 chromosomes
D. The chromosome number is a characteristic of a species
参考答案: D
本题详细解析:
All species have a characteristic number of chromosomes (choice D). Gene number is not determined by chromosome number because chromosomes are not all the same size and do not hold the same number of genes (choice A and choice B). Choice C is incorrect because gametes have a haploid number of chromosomes which means gametes of carrot plants have 9 chromosomes.
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