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Principles Of Inheritance And Variation

Question
CBSEENBI12002229
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Which enzyme/s will be produced in cell in which there is a non-sense mutation in the lac Y gene?

  • beta - galactosidase

  • Lactose permease

  • Transacetylase

Solution

A.

beta - galactosidase

Beta - galactosidase is a structural gene present in the segment of DNA, which carry lcdes for the synthesis of protein. Mutation in the lac Y gene of E, coil needs residues of cytoplasmic enzyme beta - galactosidase. Lactose permease is a membrane protein, which is a major facilitator superfamily. Transacetylase is an enzyme transferring acetyl, group from one compound to another.

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