Inducible operons: are active in the presence of a repressor. usually require an inducer to be...
Inducible operons:
| are active in the presence of a repressor. |
| usually require an inducer to be transcribed. |
| usually require a repressor to be transcribed. |
| are generally anabolic pathways. |
| are normally active. |
Homework Answers
Ans: Option B
Inducible operons is an operon that is able to turn on in the presence of nutrients. Inducible operon is inactive in the absence of an inducer. Because repressor protein is binding to the operator region, but when there is an inducer it will bind to the repressor and make it inactive, then the RNA polymerase can transcribe to synthesize mRNA
It is a catabolic pathway because when there is no inducer operon will be in inactive mode so no enzymes are producing.
Eg Lac operon, lactose is the inducer and in presence of lactose produces 3 enzymes, they are beta-galactosidase, permease, and transacetylase to digest the lactose.
Add Answer to:
Inducible operons:
are active in the presence of a repressor.
usually require an inducer to be...
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In the presence of lactose an inducer molecule binds to the lac repressor molecule. the lac...
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The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is...
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obial Genetics and Genetic Engineering Saved Help Save Select the statements that are true of Inducible operons to test your understanding of the differences between inducible and repressible operons Check All That Apply Inducible operons often contain genes for enzymes that function in catabolic processes. 0 Inducible operons are usually in the turned on state and are turned off when not needed. 0 The inducer is often the product of the enzymes encoded. 0 inductible operons will be turned on"...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is absent. Predict the ways in which the following conditions will affect the transcription of the lactose-utilization genes. OPERON Regulatory Promoter Operator_ gene Lactose-utilization genes DNA mRNA RNA polymerase cannot attach to promoter Active repressor Protein If a mutation in the regulatory gene results in a misfolding of the repressor protein so that it can no longer bind DNA, the lactose-utilization genes O Will be...
for
1-5 define those
The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
please help me with the question 15 to 18.
Basic structure of an operon Note that the diagram below is one section of DNA master strend with some areas of DNA labeled in blocks The bracketed area illustrates the basic parts of an operon repressor gene promoter operator structural genes DNA 3 mRNA 5 - 3 repressor protein shown attached to operator #2 Repressor preten "Use purple to color in the repressor gene. The repressor gene codes for a repressor...
Which of the following statements is correct concerning operon gene control? Positive control requires an activator protein to stimulate transcription of the structural genes within an operon. In negative control, a repressor protein inhibits or turns off transcription of the structural genes within the operon. An inducible operon normally is not transcribed. It requires an inducer molecule to stimulate transcription either by inactivating a repressor protein in a negative inducible operon or by stimulating the activator protein in a positive...
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points)
2. According to the paper, what is the major disadvantage of
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points)
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sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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