Which of the following is true about X- linkage?
A)One result of X- linkage is a crisscross pattern of inheritance in which daughters express recessive genes of their fathers and sons express recessive genes of their mothers.
B)X linkage demonstrates that only the wild- type allele is the dominant allele.
C)Females will only express dominant alleles.
D)Males are more liable to express recessive alleles as they are hemizygous.
E)One result of X- linkage is a crisscross pattern of inheritance in which sons express recessive genes of their fathers and daughters express recessive genes of their mothers.

Question

Quizplus · Accepted Answer

X-linkage is a type of inheritance in which a gene is located on the X chromosome. Since males only have one X chromosome, they are hemizygous for X-linked genes, meaning they only have one copy of the gene. This makes them more likely to express any recessive alleles present on their X chromosome, as they have no second copy to mask the effects of the gene. Females, on the other hand, have two X chromosomes, so they can be homozygous or heterozygous for X-linked genes. Therefore, D is the correct answer.

Which of the Following Is True About X- Linkage