Which of the following is an example of genetic mosaicism?
A)Calico coat color in cats
B)Albinism in mice
C)Male pattern baldness in humans
D)Red-green color blindness in humans
E)White eyes in Drosophila

Question

Quizplus · Accepted Answer

Calico coat color in cats is an example of genetic mosaicism because the coat color is determined by the expression of two different alleles on the X chromosome, which results in patches of different colors on the coat. Since female cats have two X chromosomes, they can express both alleles and have a mosaic coat color pattern.

Other choices are not examples of genetic mosaicism:
B) Albinism in mice is a result of a single mutation affecting the synthesis of melanin. 
C) Male pattern baldness in humans is a complex trait, influenced by multiple genes and environmental factors. 
D) Red-green color blindness in humans is caused by mutations in a single gene on the X chromosome, and affected individuals have the same mutation in all their cells. 
E) White eyes in Drosophila is a Mendelian trait caused by a mutation in a single gene, which is recessive to the wild-type allele.

Which of the Following Is an Example of Genetic Mosaicism