Imagine that your grandmother is homozygousfor a mutant allele Imagine that your
ID: 141511 • Letter: I
Question
Imagine that your grandmother is homozygousfor a mutant allele Imagine that your grandmother is homozygous for a mutant allele that encodes for webbed toes. Your grandfather does not possess the allele. Your grandparents have four children, including your mother and her three brothers. Neither you, your mother, nor her brothers exhibit webbed toes. However, all of your cousins exhibit webbed toes. Given this information only, what phenomenon might best explain this phenotypic pattern in your family? Oa epistasis Ob.genomic imprinting Oc. crossing over Od. X-linked inheritance Oe. It is impossible to choose any of the above without knowing the sex of each cousin.Explanation / Answer
d) it is an X linked inheritance.As grandmother was homozygous webbed toes this means both the X allel of grandmother is infected. When infected grandmother is crossed with normal grandfather then neither of out of four children is infected as the daughter becomes carrier.while the cousins will be carrying the infected allel.