Q. Rh factor is present in
A) All vertebrates
B) All mammals
C) All reptiles
D) Man and rhesus monkey only
Explanation
Rh factor was discovered by K Landsteiner and A S Wiener (1940) from rabbits immunized with the blood of monkey Macaca rhesus. It is found is man and rhesus monkey only.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.