What is a replication bubble?
A)A complex of replication enzymes on the DNA template strand
B)A DNA sequence that initiates replication
C)A tangle of denatured DNA strands near the replication fork
D)A locally denatured segment of DNA where replication originates
E)A localized site in the nucleus where chromosomes are replicating

Question

Quizplus · Accepted Answer

A replication bubble is a locally denatured segment of DNA where replication originates. It forms when the DNA double helix is unwound at the origin of replication, creating a replication fork. DNA polymerase enzymes then synthesize new strands of DNA complementary to the template strands, making the replication bubble grow in size until eventually, it merges with adjacent bubbles to complete the replication of the entire chromosome.

What Is a Replication Bubble