Question

Which of the following statement is correct regarding the process of replication in E.coli?

Options

• The DNA dependent DNA polymerase catalyses polymerization in 5'→ 3' as well as 3' → 5' direction.

• The DNA dependent DNA polymerase catalyses polymerization in 5' → 3' direction.

• The DNA dependent DNA polymerase catalyses polymerization in one direction that is 3' → 5'.

• The DNA dependent RNA polymerase catalyses polymerization in one direction, that is 5' → 3'.

Answer 1

The DNA dependent DNA polymerase catalyses polymerization in 5' → 3' direction.

Explanation:

DNA polymerase catalyses the addition of nucleotides to the expanding DNA strand in the 5' to 3' direction during DNA replication. By appending nucleotides to the 3' end of the developing strand, DNA polymerase creates the new DNA strand. This procedure guarantees correct and effective replication of the DNA molecule.