During DNA replication,

Easy

A

only ribonucleoside triphosphates are used as substrates.
B

only deoxyribonucleoside triphosphates are used as substrates.
C

both ribonucleoside and deoxyribonucleoside triphosphates are used as substrates and source of energy.
D

each formed daughter DNA molecule has either parental strands or only newly formed DNA strands.

Solution

Both ribonucleoside and deoxyribonucleoside triphosphates are used as source of energy and substrates. Ribonucleoside triphosphates are used to form RNA primers in the presence of primase or DNA dependent RNA polymerase.

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