Q. There is no DNA in:
A) Mature RBCs
B) A mature spermatozoan
C) Hair root
D) An enucleated ovum
Explanation
[Solution from source] Mature human (mammalian) RBCs lose their nucleus and have no mitochondria, so they contain no DNA. An enucleated ovum still has mitochondrial DNA, and a sperm and hair root cells have nuclei. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.