In the lac operon, what are the likely effects on operon gene transcription of the mutations identified below?

+1 vote

Part A

Mutation of consensus sequence in the lac promoter.

 

Part B

Mutation of the repressor binding site on the operator sequence.

 

Part C

Mutation of the lac I gene affecting the allosteric site of the protein.

 

Part D

Mutation of the lac I gene affecting the DNA-binding site of the protein.

asked Nov 23, 2012 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

1 Answer

+1 vote

Part A

Transcription is blocked

 

Part B

Transcription is constitutive.

 

Part C

Transcription is blocked

 

Part D

Transcription is constitutive.

answered Nov 23, 2012 by GeneX ~Top Expert~ (7,947 points)

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