During DNA replication, the enzyme DNA polymerase can add a new nucleotide to the 3' OH group of the already existing nucleotide. In a double stranded DNA molecule, the polarity of both the strands is opposite to each other. Based on the information provided, identify A and B in the diagram.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

A- Lagging strand 3' to 5', B - Leading strand 5' to 3'respectively

A- Leading strand 5' to 3', B - Lagging strand 3' to 5' respectively

A- Leading strand 3' to 5', B - Lagging strand 5' to 3 respectively

A- Lagging strand 5' to 3', B - Leading strand 5' to 3' respectively

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The direction of leading and lagging strands can be defined w.r.t the direction of the replication fork.

The leading strand synthesis takes place in the same direction of the replication fork means its template is in 3' to 5' direction while the lagging strand synthesis takes place in the opposite direction of the replication fork means its template is in 5' to 3' direction.

Watch 3-min video & get full concept clarity