Semi-discontinuous mode of DNA replication was discovered by

Meselson and Stahl
Watson and Crick
Hershey and Chase
Okazaki and Okazaki

Meselson and Stahl

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Watson and Crick

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Hershey and Chase

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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 synthesized continuously, while the other strand, is 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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Which property of DNA double helix led Watson and Crick to hypothesize semi- conservative mode of DNA replication? Explain.

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