Question 4 (1 point) Which statement(s)is TRUE about X- linked inheritance? More females than males will express the recessive phenotype. Males will not pass the trait on to any of their sons. Males can be carriers of the recessive X-linked allele. none of the above

Question

Question 4 (1 point) Which statement(s)is TRUE about X- linked inheritance? More females than males will express the recessive phenotype. Males will not pass the trait on to any of their sons. Males can be carriers of the recessive X-linked allele. none of the above

Answer 1

The correct answer is **Males will not pass the trait on to any of their sons.**Here's why:* **X-linked inheritance** means the gene responsible for the trait is located on the X chromosome. Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX).* **Sons inherit their Y chromosome from their father and their X chromosome from their mother.** Therefore, fathers cannot pass X-linked traits to their sons. They *do* pass their X chromosome to their daughters.* **Recessive X-linked traits are more common in males.** Because males only have one X chromosome, if they inherit the recessive allele, they will express the trait. Females need two copies of the recessive allele (one on each X chromosome) to express the trait. Therefore, it's *less* common in females.* **Males cannot be carriers of recessive X-linked alleles.** "Carrier" implies having the allele but not expressing the trait. Since males only have one X chromosome, they will express whatever allele is present on that chromosome. If they have the recessive allele, they will show the trait. Females *can* be carriers because they have two X chromosomes.

Question

Question 4 (1 point) Which statement(s)is TRUE about X- linked inheritance? More females than males will express the recessive phenotype. Males will not pass the trait on to any of their sons. Males can be carriers of the recessive X-linked allele. none of the above

Solution

Answer