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.