Which of the following statement about DNA is not correct?

it has a double helix structure

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it undergoes replication

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the two strands in a DNA molecule are exactly non-complementary

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it contains the pentose sugar-2-deoxyribose

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Solution

The correct option is C the two strands in a DNA molecule are exactly non-complementary
The two strands in a DNA molecule are complementary to each other.
Hence, the option C is incorrect.

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Similar questions

Which of these statements about eukaryotic DNA is incorrect?

I. It contains the complementary base pair A-U.

II. The two strands are antiparallel ( 5' - 3') with 10 base pairs in each helix of 3.4 Å.

III. Number of Purines > Number of Pyrimidines.

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