Red-green colorblindness is more common in men because men are more likely to be homozygous for the X chromoso

Question

Red-green colorblindness is more common in men because

men are more likely to be homozygous for the X chromosome.

men have fewer cones in their retinas.

men have only one X chromosome.

the gene for colorblindness is carried on the Y chromosome.

GPT-5 mini · Answer

men have only one X chromosome.

Red-green colorblindness is usually an X-linked recessive trait. Males (XY) are hemizygous for X-linked genes, so a single mutant allele on their X causes the condition; females (XX) need two mutant copies to be affected.

Red-green colorblindness is more common in men because

men are more likely to be homozygous for the X chromosome.

men have fewer cones in their retinas.

men have only one X chromosome.

the gene for colorblindness is carried on the Y chromosome.

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Red-green colorblindness is more common in men because men are more likely to be homozygous for the X chromosome. men have fewer cones in their retinas. men have only one X chromosome. the gene for colorblindness is carried on the Y chromosome.

All Answers 1

Submit Your Answer

Red-green colorblindness is more common in men because

men are more likely to be homozygous for the X chromosome.

men have fewer cones in their retinas.

men have only one X chromosome.

the gene for colorblindness is carried on the Y chromosome.