AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA REPLICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why must there be a lagging strand during DNA synthesis?
A
The lagging strand ensures replication of both strands occurs at a similar rate
B
DNA is antiparallel
C
The lagging strand helps conserve energy
D
DNA is a polyanion
Explanation: 

Detailed explanation-1: -The antiparallel structure of DNA is important in DNA replication because it replicates the leading strand one way and the lagging strand the other way. During DNA replication, the leading strand is replicated continuously whereas the lagging strand is replicated in segments known as Okazaki fragments.

Detailed explanation-2: -Why must there be a lagging strand during DNA synthesis? Explanation: The lagging strand exists because DNA is antiparallel and replication always occurs in the 5’ to 3’ direction.

Detailed explanation-3: -antiparallel definition. A term used to describe the opposite orientations of the two strands of a DNA double helix; the 5’ end of one strand aligns with the 3’ end of the other strand.

There is 1 question to complete.