Q. Which one of the following symbols and its representation, used in human pedigree analysis is correct?
A) ◆ = male affected
B) □═○ = mating between relatives
C) ○ = unaffected male
D) □ = unaffected female
Explanation
[Solution from source] In pedigree charts, a double line joining a male (square) and a female (circle) shows a consanguineous mating, that is, mating between relatives. A shaded diamond is an affected person of unspecified sex, a plain circle is an unaffected female, and a plain square is an unaffected male. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.