Identify the role of deoxyribonucleoside triphosphates in DNA replication.
A. Initiate replication.
B. Act as substrate.
C. Provide energy for polymerisation.
D. Activate ligases.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → B and C Only
A. Initiate replication. — False.
B. Act as substrate. — True.
C. Provide energy for polymerisation. — True.
D. Activate ligases. — False.
NCERT Extract:
The Machinery and the Enzymes – “… Furthermore, energetically replication is a very expensive process. Deoxyribonucleoside triphosphates serve dual purposes. In addition to acting as substrates, they provide energy for polymerisation reaction (the two terminal phosphates in a deoxynucleoside triphosphates are high-energy phosphates, same as in case of ATP).”