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LenKa [72]
3 years ago
10

What would be the result of a mutation that deactivates the regulatory gene of a repressible operon in an escherichia coli cell?

Biology
1 answer:
leonid [27]3 years ago
7 0

The correct answer is: B) continuous transcription of the structural gene controlled by that regulator

A regulatory gene is gene that encodes for a protein, such as a repressor (or activators) that controls the transcription of another gene or group of genes.

The regulatory gene of a repressible operon encodes for the repressor that inhibits gene transcription. So, when that repressor isn’t active, transcription occurs continuously.

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1. Explain how the traits of an organism are related to the genes in DNA.
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Recessive Traits are less likely to show up. Their Genotype use lower case such as rr. Now genotypes of Rr have one dominant trait and one recessive trait. If the dominant trait was black fur and the recessive white fur, the offspring will be black fur because dominant traits overpower the other.

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| R. r

-----------------------------------

R | Rr. Rr

-----------------------------------

r | Rr. rr

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