DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ1.16

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ1.16
Level SL Paper 1A Time zone TZ1
Command term Question number 16 Adapted from N/A
16.
[Maximum mark: 1]
23M.1A.SL.TZ1.16

For what reason do gametes contain only one allele of each gene?


A.  To prevent inbreeding in a population

B.  Haploid cells contain only one set of chromosomes

C.  The two alleles of a gene are separated during mitosis

D.  Crossing over will always produce one allele of a gene

[1]

Markscheme

B

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