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Definition of Locus

The important...

Question

The important things to remember are that chromosomes as well as genes occur in __A_. The two alleles of a gene pair are located on homologous sites on _B_ chromosomes. Choose the correct choice for A and B.

A

A-single, B-analogous

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B

A-pair, B-analogous

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C

A-pair, B-homologous

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D

A-single, B-heterozygous

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Solution

The correct option is D A-pair, B-homologous
Both chromosomes, as well as genes, occur in pairs in the somatic or diploid cells.
The two alleles of a gene pair are located on homologous sites on homologous chromosomes.
So the correct answer is option C.

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