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Question

The gene increasing the frequency of mutations in other genes is called as

A
Hypostatic
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B
Lac
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C
Trp
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D
Mutagene
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Solution

The correct option is C Mutagene
The gene increasing the frequency of mutations in other genes is mutagene.
A gene that masks the phenotypic effect of another gene is called as an epistatic gene; the gene it subordinates is the hypostatic gene.
The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and some other enteric bacteria. The trp operon is an operon; a group of genes that are used or transcribed, together that codes for the components for production of tryptophan. The trp operon is present in many bacteria, but was first characterized in Escherichia coli.
Thus, the correct answer is option D.

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