Question

1. This enzyme replaces RNA primers with a compatible DNA segment.

RNA Primase

DNA Polymerase III

Topoisomerase

DNA Polymerase I

2. This class of enzymes prevent DNA molecules from damaging themselves by relieving strain, untangling, cutting and rejoining strands. They will ride ahead of the replication fork preventing over-winding.

Helicase

DNA Ligase

Topoisomerase

RNA polymerase

3. This type of molecule prevents the two separated strands of DNA in a replication bubble from re-establishing their hydrogen bonds ("reannealing").

DNA Polymerase III

Topoisomerase

Helicase

DNA Polymerase I

Single-Strand Binding Proteins

Answer 1

1. DNA polymerase 1 enzyme replaces RNA primers with a compatible DNA segment.

RNA primase synthesis RNA primers complementary to the DNA strand.

Polymerase3 is one of the main ones in DNA replication.

Topoisomerase enzymes are participate in the overwinding of DNA.

So option ''D'' is the correct answer.

2. Topoisomerase enzymes prevent DNA molecules from damaging themselves by relieving strain,untangling,cutting and rejoiningstrands.

Helicase unwinds the DNA.

DNA ligase can connect two strands of DNA together.

RNA polymerase synthesizes RNA by following a strand of DNA.

So option ''C'' is the correct answer.