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Question

Semi-discontinuous mode of DNA replication was discovered by


A

Meselson and Stahl

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B

Watson and Crick

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C

Hershey and Chase

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D

Okazaki and Okazaki

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Solution

The correct option is D

Okazaki and Okazaki


DNA replication is ‘semi-discontinuous’ because one of the strands is synthesised continuously, while the other strand, discontinuously by the formation of Okazaki fragments. This was discovered in the year 1968 by a Japanese scientist couple - Reiji Okazaki and his wife Tsuneko Okazaki. The term ‘Okazaki fragments’ has been given after them.


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