Q. Which of the following statements is true?

A) In the historic cloning experiment of Dr. Wilmut, the transplanted nucleus was taken from an udder cell
B) Mammalian characters appeared first in dinosaurs
C) Heart of mammals is incapable of being in vitro
D) Pyramid of biomass is upright in pond ecosystem
Explanation

The correct answer is Option A: In the historic cloning experiment of Dr. Wilmut, the transplanted nucleus was taken from an udder cell.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.