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johnja johnja
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While female and male beetles both contain twenty diploid chromosomes, males have one smaller chromosome than in females. What can be inferred from this observation?

▸ Males require fewer genes than females.

▸ The number of autosomal chromosomes varies between gametes.

▸ Crossing over occurs between homologous chromosomes.

▸ Biological sex is determined by the presence of an X or Y chromosome.

▸ Chromosomes assort independently to determine biological sex.
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Genetic Analysis: An Integrated Approach


Edition: 3rd
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zsc999zsc999
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Biological sex is determined by the presence of an X or Y chromosome.

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