drag each phrase to the appropriate bin depending on whether it describes the synthesis of the leading strand, the synthesis of the lagging strand, or the synthesis of both strands.

Since you don't provide the phrase, it more or less will look like this :

a. Leading Strand
- Made continuously
- Only one primer needed
- Daughter strand elongates toward replication fork

b, Lagging strand
- made in segment
- multiple primer needed
- Daughter strand elongates away from replication fork

C. Both strands
- Synthesized 5 to 3

Answer Link

kateloise kateloise · Answer 2 · 2021-03-10T09:03:43+01:00

Answer:

leading strand

made continuously

only one primer needed

daughter strand elongates toward replication fork

lagging strand

made in segments

multiple primers needed

daughter strand elongates away from replication fork

both strands

synthesized 5' to 3'

Explanation:

Because DNA polymerase III can only add nucleotides to the 3' end of a new DNA strand and because the two parental DNA strands are antiparallel, synthesis of the leading strand differs from synthesis of the lagging strand.

The leading strand is made continuously from a single RNA primer located at the origin of replication. DNA pol III adds nucleotides to the 3' end of the leading strand so that it elongates toward the replication fork.

In contrast, the lagging strand is made in segments, each with its own RNA primer. DNA pol III adds nucleotides to the 3' end of the lagging strand so that it elongates away from the replication fork.

In the image below, you can see that on one side of the origin of replication, a new strand is synthesized as the leading strand, and on the other side of the origin of replication, that same new strand is synthesized as the lagging strand. The leading and lagging strands built on the same template strand will eventually be joined, forming a continuous daughter strand.