Question

Which of the following statements about DNA replication is FALSE?

• Primase synthesizes the primers.

• DNA polymerase is required to add new nucleotides to the growing ends of the DNA strands.

• DNA ligase joins the small DNA fragments of the lagging strand.

• Only one strand of the parent DNA serves as a template for a newly synthesized complementary strand.

Answer 1

The answer is : Only one strand of the parent DNA serves as a template for newly synthesized complementary strand.

Reason :

• During DNA replication , the DNA strands separate .
• And each strands act as a template , on which the complementary strand is synthesized.
• The other options are true regarding DNA replication.

DNA primase initiates the synthesis of the primers.

DNA ligase seals the single strand between the nascent chain and the okazaki fragments on lagging strand.

DNA polymerase catalyzes deoxyribonucleotide polymerization, that is, they add the nucleotides to the growing end of the DNA strands.