Q.

Which of the following statement is correct about DNA polymerase ?

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a

DNA polymerase can synthesize mRNA in the 3' to 5' direction.

b

DNA polymerase can synthesize DNA in the 5' to 3' direction.

c

DNA polymerase can synthesize mRNA in the 5' to 3' direction.

d

DNA polymerase can synthesize DNA in the 3' to 5' direction.

answer is B.

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Detailed Solution

DNA polymerase is an enzyme which is involved in the replication and repair of DNA. It synthesizes new DNA strands using a DNA template in the 5' - 3' direction. DNA polymerase adds DNA nucleotides always 5'__3' direction due to presence of free OH at 3' end of the nucleotide .

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