Question

Describe gene regulation of the lac operon by the cAMP regulatory protein

Describe gene regulation of the lac operon by the cAMP regulatory protein
Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Gene regulation is the control the rate of synthesis of proteins from mRNA. The complex set of interactions between genes, mRNA, transcriptions factor are regulated when the specific genes should be ON or OFF.

cAMP active the catabolite Activator Protein (CAP) and it activates the transcription of the operon.

Operon is a functioning unit of genomic DNA (deoxyribonucleic acid), which is a group of genes whose transcription is under the control of a single promoter. The “Lac Operon” contains the genes that code for lactose metabolizing proteins of E. coli. Lactose is an inducer molecule of the lac operon when inducer binds to the repressor, its shape is altered, in this state; the operator cannot bind to the repressor.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Which of the following is a protein produced by a regulatory gene near the lac operon?...
Which of the following is a protein produced by a regulatory gene near the lac operon? Group of answer choices Operon Promoter Enhancer Inducer Repressor
Protein A is a transcriptional regulatory protein for operon alpha. Gene expression of the operon is...
Protein A is a transcriptional regulatory protein for operon alpha. Gene expression of the operon is unregulated in the presence of co-factor molecule Q. If A is deleted, gene expression on the operon alpha is constitutive. What type of regulation is this and what type of regulatory/co-factor are A and Q?
Which of the following accurately describes the status of lac operon regulation when E. coli cells...
Which of the following accurately describes the status of lac operon regulation when E. coli cells shift from using glucose to lactose as their carbon source? A. The lac repressor is active and the CAP protein is active, so the operon is transcribed B. The lac repressor is active and the CAP protein is inactive, so the operon is transcribed C. The lac repressor is inactive and the CAP protein is active, so the operon is transcribed D. The lac...
Which of the following statements about regulation of the lac operon is true? Select all that...
Which of the following statements about regulation of the lac operon is true? Select all that apply. Group of answer choices When glucose is present but lactose is absent, gene expression is activated at the lac operon. The presence of glucose in the growth medium does not affect the level of gene expression activated by the presence of lactose. The lac repressor can dissociate from the operator in the presence of glucose. Gene expression is high when the lac repressor...
For the Lac operon: a. What Is the regulator protein, ligand and DNA sequences involved for...
For the Lac operon: a. What Is the regulator protein, ligand and DNA sequences involved for each of the three types of regulation? The three types are negative inducible, positive inducible and catabolite repression. b. How does the presence of glucose result in the lac operon being shut off?
What happens if a gene in an operon is separated from that operon (for example, Lac...
What happens if a gene in an operon is separated from that operon (for example, Lac operon)
Eplanation would be greatly appriciated. What role does cAMP play in transcription of lac operon genes?...
Eplanation would be greatly appriciated. What role does cAMP play in transcription of lac operon genes? What role does CAP play in transcription of lac operon genes?
A recent research paper demonstrated that cAMP bound to CAP acts more strongly on the lac...
A recent research paper demonstrated that cAMP bound to CAP acts more strongly on the lac operon than on the arabinose operon. Given what you know about catabolite regulation, and the lac operon, list the order of preference of utilisation of the three sugars; arabinose, lactose and glucose.
We studied a dominant mutation for the lac operon’s gene for the lac repressor. Which description...
We studied a dominant mutation for the lac operon’s gene for the lac repressor. Which description below best explains why the mutation is dominant? Select one: If the mutant repressor cannot bind DNA the lac operon is derepressed even in the presence of a second copy of the repressor gene that is wild type. If the mutant repressor protein cannot bind lactose it represses the expression of the lac operon even in the presence of a second copy of the...
Lac Operon 1. Drawing and mapping the lac operon genes and discussing in pros=words 2. What...
Lac Operon 1. Drawing and mapping the lac operon genes and discussing in pros=words 2. What types of mutations affect that she has made and how it will affect the lac operon? 3. ITPG what is it used for to manipulate the lac Operon 4. Faith of viruses and different classes 5. Regulation of operons negative or positive repression or induction 6. Kreb Cycle/ ETC
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT