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Semiconservative Replication

Direction of ...

Question

Direction of RNA synthesis and direction of reading of the template DNA strand is

A

5' - 3' and 3' - 5'

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B

3' - 5' and 5' - 3'

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C

5' - 3' and 5' - 3'

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D

3' - 5' and 3' - 5'

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Solution

The correct option is A 5' - 3' and 3' - 5'
Transcription and replication both occur in 5' - 3' direction. Thus, template DNA has 3' - 5' reading frame.

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Similar questions

Q. Which among the following statements is/are correct?

Statement 1: In the double-stranded DNA, only one strand serves as a template for the duplication of the new DNA.

Statement 2: Leading strand is continuously synthesised in 5’-3’ direction and lagging strand is discontinuously synthesised in 3’-5’ direction.

Statement 3: DNA polymerase reads the template strand in 5’-3’ direction.

Statement 4: Replication proceeds only in 5’-3’ direction

Choose the correct option

Q. Select the correct option regarding the process of transcription.

	RNA synthesis	Reading of template strand
A.	3’ – 5’	3’ – 5’
B.	5’ – 3’	5’ – 3’
C.	3’ – 5’	5’ – 3’
D.	5’ – 3’	3’ – 5’

Q. Assertion :Synthesis of daughter or new strand occurs continuously along the parent 3

\to

5 strand. Reason: DNA polymerase can polymerise nucleotides in 3

\to

5 direction on 5

\to

Q. Read the statements (A) and (B). Choose the right one.

(A) Synthesis of mRNA takes place in

5^{'} - 3^{'}

direction.
(B) Reading of mRNA is always in

3^{'} - 5^{'}

Q. Why replication is not continuous on the DNA template with

5^{'} \to 3^{'}

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