wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

During DNA replication, Okazaki fragments are used to elongate :

A
The leading strand towards replication fork
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
The lagging strand towards replication fork
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
The leading strand away from replication fork
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
The lagging strand away from replication fork
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D The lagging strand away from replication fork
DNA replication is the process by which DNA makes copies of itself. During the process, the two strands of DNA separate and act as templates for the synthesis of new complementary strands. DNA polymerase is the enzyme that catalyses the polymerisation of the new DNA strands. They can catalyse the polymerisation only in 5' to 3' direction.
As a consequence, on one strand (the template with polarity 3' to 5'), the replication is continuous, while on the other (the template with polarity 5' to 3'), it is discontinuous. The discontinuously synthesised fragments are called Okazaki fragments. Okazaki fragments are formed on the lagging strand away from the replication fork and later joined by the enzyme DNA ligase.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
DNA Replication
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon