OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements about homologous chromosomes is correct?
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Each gene is at the same locus on both chromosomes
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They are two identical copies of a parent chromosome which are attached to one another at thecentromere
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They always produce identical phenotypes
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They are chromosomes that have identical genes and allele
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Explanation:
Detailed explanation-1: -The chromosomes in a homologous pair each have the same genes in the same order, but there may be variation between them, resulting in different alleles. Some of the variants in these alleles might have functional implications while others will not.
Detailed explanation-2: -The genes are at the same loci and have the same alleles. Whereas homologous chromosomes carry the same genes at the same loci but can have different alleles.
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