Machine-translated by Google. Questions are authored in English.
Top

Discussion

Assertion (A): A mature mammalian red blood cell cannot divide.
Reason (R): It has no nucleus and therefore no chromosomal DNA to replicate.

  • A.Both A and R are true, but R is not the correct explanation of A
  • B.A is true but R is false
  • C.A is false but R is true
  • D.Both A and R are true, and R is the correct explanation of A

Answer: D

Both are true and the reason gives the cause directly: division requires a genome to be copied and segregated into the daughters, and this cell discarded its own genome during maturation in the bone marrow, keeping only its haemoglobin.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.