question_answer

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached earlobes as opposed to the free ones. The squares represent the male individuals and circles the female individuals [AIIMS 2004] Which one of the following conclusions drawn is correct

A) The parents are homozygous recessive

B) The trait is Y-linked

C) The parents are homozygous dominant

D) The parents are heterozygous