QUESTION 26 Select all true statements regarding X-linked traits: Males are more likely to express recessive X-linked traits than females. Females cannot be carriers of X-linked traits. A male receives his X chromosome from his mother. Color blindness is an example of an X-linked trait.
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This statement is true. Males have only one X chromosome, so if they inherit a recessive allele on their X chromosome, they will express the trait. Females have two X chromosomes, so they need to inherit two copies of the recessive allele to express the trait. Show more…
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Which are true of a non-fatal X-linked trait such as colorblindness? males can only be colorblind if their mother is a carrier of the allele for colorblindness males can only be colorblind if their mother is colorblind females can only be colorblind if their father is colorblind males are statistically more likely to be colorblind than females males can only be colorblind if both parents are colorblind females can only be colorblind if their mother is a carrier of the allele for colorblindness colorblindness is found only in males females can only be colorblind if both parents are colorblind
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What is FALSE about X-linked traits? females can be carriers of X-linked trait because they can be heterozygous for the trait males inherit X-linked traits from their mothers, pass X-linked traits to their daughters, and through their daughters, to their daughters' descendants males inherit X-linked traits from their fathers, pass X-linked traits to their sons, and through their sons, to their sons' descendants males show the phenotypes of all X-linked traits, regardless of whether the X-linked allele is normally recessive or dominant
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