IB Biology HL A3.1.6 Diversity in Chromosome Numbers Topic Practice

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Study A3.1.6—Diversity in chromosome numbers conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

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The diploid number of chromosomes in humans (Homo sapiens) is 46 and the diploid number of chromosomes in rice (Oryza sativa) is 24. What does this indicate about diploid chromosome numbers?

A

Plant species have a lower diploid number of chromosomes than animals.

B

Members of a species have the same diploid number of chromosomes.

C

The evolutionary progress of species is determined by the diploid number of chromosomes.

D

The complexity of the organisms is correlated to the diploid number of chromosomes.

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