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Which of the following is true about DNA polymerase?

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in Biochemistry by (89.2k points)
Which of the following is true about DNA polymerase?

(a) It can synthesize DNA in the 5’ to 3’ direction

(b) It can synthesize DNA in the 3’ to 5’ direction

(c) It can synthesize mRNA in the 3’ to 5’ direction

(d) It can synthesize mRNA in the 5’ to 3’ direction

This question was posed to me in an interview.

This interesting question is from DNA Replication in chapter DNA, RNA and Protein Metabolism of Biochemistry

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Best answer
Right answer is (a) It can synthesize DNA in the 5’ to 3’ direction

Best explanation: DNA pol can synthesize only a new DNA strand not m-RNA. It can do this in the 5’ to 3’ direction.

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