本题目来源于试卷: Continuity and Change D.4 Cell & Nuclear Division，类别为 IB生物学
[单选题]
Which row correctly describes diploid and haploid cells in husow/.1- 1nf f) vaazpc6,b r qgb4p:szmans?
A. Haploid cell is Chromosomes not in pairs; have two sex chromosomes;Diploid cell is Chromosomes not in pairs; have one sex chromosome
B. Haploid cell is Chromosomes not in pairs; have one sex chromosome;Diploid cell is Chromosomes in pairs; have two sex chromosomes
C. Haploid cell is Chromosomes in pairs; have two sex chromosomes;Diploid cell is Chromosomes not in pairs; have one sex chromosome
D. Haploid cell is Chromosomes in pairs; have one sex chromosome;Diploid cell is Chromosomes in pairs; have two sex chromosomes
参考答案: B
本题详细解析:
Choice B is correct because haploid cells have one chromosome from each homologous pair, diploid cells have pairs of chromosomes, haploid cells have one sex chromosome, and diploid cells have two sex chromosomes. Choice A is incorrect because diploid cells have pairs of chromosomes, haploid cells have one sex chromosome, and diploid cells have two sex chromosomes. Choice C is incorrect because haploid cells do not have pairs of chromosomes, and diploid cells have two sex chromosomes. Choice D is incorrect because haploid cells do not have pairs of chromosomes.
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