IB Biology SL D3.2.1 Haploid Gametes Fusion Diploid Zygote Topic Practice

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Study D3.2.1—Haploid gametes + fusion = diploid zygote conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

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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

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