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

Question

Quizplus · Accepted Answer

A very narrow pedigree, such as that of Egypt's Ptolemy dynasty, indicates a high rate of consanguinity, i.e. marriage between blood relatives. This is because the narrow pedigree means that there are limited individuals in the family tree, indicating that many relatives have married within the family. This has been documented in the Ptolemy dynasty, where intermarriage between siblings and cousins was common in order to maintain the dynasty's power and wealth.

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