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Q.

Read the following table

AB
Entire DNA is involvedOnly a part of DNA is involved
‘Ori’ is a place of initiationPromoter sequence is a place of initiation
Both deoxyribonucleotides and ribonucleotides are neededOnly ribonucleotides are needed
Helicase help in breaking hydrogen bondsRNA polymerase help in breaking hydrogen bonds

Which process A and B represent ?

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a

DNA replication and translation

b

Translation and transcription

c

DNA replication and transcription

d

DNA replication and PCR

answer is C.

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Detailed Solution

DNA replication involves entire DNA. ‘Ori’ is a place of initiation. Deoxyribonucleotides are required for elongation and ribonucleotides are needed for formation of primer to initiate the process of DNA replication. Helicase help in breaking hydrogen bonds between the two strands of DNA.

During transcription only a part of DNA is involved. Promoter sequence is a place of initiation of transcription. Only ribonucleotides are needed for this process. RNA polymerase help in breaking hydrogen bonds between the two strands of DNA.

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