LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in Biology by (46.2k points)

When cell has stalled DNA replication fork,which checkpoint should be predominantly activated?

(a) G1 / S

(b) G2 / M

(c) M

(d) Both G2 / M and M

1 Answer

+1 vote
by (64.2k points)
selected by
Best answer

Correct option (a) G1 / S

Explanation :

Stalled forks activate checkpoint signaling and pause replication. Since, G1/S checkpoint checks  DNA damage, cells size prior to S-phase (i.e. DNA replication phase). This checkpoint would be activated by stalled DNA replication fork.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.