A very narrow pedigree,such as that for Egypt's Ptolemy dynasty,reflects
A) families with many children.
B) families with many adopted children.
C) a very mild phenotype.
D) many uncles marrying their nephews.
E) families with many relatives having children with blood relatives.

Question

Quizplus · Accepted Answer

A narrow pedigree reflects a limited number of individuals in a family tree, which can be a result of inbreeding (marriage between blood relatives). The Ptolemy dynasty of ancient Egypt is known for its high level of inbreeding, with marriages between siblings and cousins being common. This led to a very narrow pedigree with a limited number of ancestors, but also increased the risk of genetic disorders and health problems in offspring.

A Very Narrow Pedigree,such as That for Egypt's Ptolemy Dynasty,reflects