Principle Of Inheritance And Variation Question 58
Question: Assertion : DNA polymerase-I acts as proofreader. Reason : DNA polymerase-I removes mismatched nucleotides.
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: A
Solution:
DNA polymerase I can also remove thymine dimers produced due to UV irradiation and fill the gap due to excision.
The newly formed segment is sealed by DNA ligase.
BETA
