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Question

Thermostable enzymes ‘Taq and Pfu’ isolated from thermophilic bacteria are

A
Restriction endonucleases
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B
RNA polymerases
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C
DNA polymerases
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D
DNA ligases
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Solution

The correct option is C DNA polymerases

The thermostable property of thermostable DNA polymerases makes it possible to remain active during the high temperature conditions of PCR, especially in the denaturation of double stranded DNA. Examples include ‘Taq and Pfu’ isolated from thermophilic bacteria.

Hence the correct option is
a. DNA polymerases


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