Q. How many phenotype and genotypes are possible in ABO blood group systems?
A) Four, five
B) Four, six
C) Four, seven
D) Three, four
Explanation
The correct answer is Option A: Four, five.
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.