Question

Drag the labels to their appropriate locations in the flowchart below, indicating the sequence of events in the production of fragment B. (Note that pol I stands for DNA polymerase I, and pol III stands for DNA polymerase III.)

Answer 1

(Complete question attached)

Answer:

1. Pol III binds to 3' end of primer B
2. Poll III moves to 5' to 3',adding DNA nucleotides to primer B
3. Pol I binds to 5' end primer A
4. Pol I replaces primer A with DNA
5. DNA ligase links fragments A and B

Explanation:

Both strands of parental DNA acts as a template for the synthesis of new DNA. The site of synthesis is called replication fork because the daughter strands look similar to two-pronged fork. The strands formed from Okazaki fragments(short sequences of DNA nucleotides) is called the lagging strands, which is synthesized in short fragments and in the opposite direction. While the strand that is synthesized continuously and in the same direction as the movement of the replication fork is called the leading strand. Both strands are synthesized in a 5'→3' direction. DNA ligase join these fragments together.