Q. Rh factor is present in
A) All vertebrates
B) All mammals
C) All reptiles
D) Man and rhesus monkey only
Explanation
The correct answer is Option A: All vertebrates.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.