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Question

Okazaki fragments are synthesized on

A
Leading strands of DNA only
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B
Lagging strands of DNA only
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C
Both leading and lagging strands of DNA
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D
Complementary DNA
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Solution

The correct option is B Lagging strands of DNA only
Okazaki fragments are short, newly synthesized DNA fragments that are formed on the lagging template strand during DNA replication. They are complementary to the lagging template strand, together forming short double-stranded DNA sections. On the leading strand DNA replication proceeds continuously along the DNA molecule as the parent double-stranded DNA is unwound, but on the lagging strand the new DNA is made in installments, which are later joined together by a DNA ligase enzyme.

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