Organisms And Population Question 147

Question: Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Regeneration blastema is a bud-like structure formed during regeneration of limb in salamander. Reason : Formation of regeneration blastema involves dedifferentiation.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: B

Solution:

Formation of a conical bulge called regeneration blastema or bud below the newly formed epidermal cover so that the epidermis starts bulging during the regeneration of limb of salamander.

A number of evidence have supported that the mitotically proliferating cell in a regenerating limb are derived by a regressive process called transformation of dedifferentiation of specialized or fully differentiated cells of the skin, muscles, bones etc.