Questions from Genetics

Q: If a gene is repressible and under positive control, what kind

If a gene is repressible and under positive control, what kind of effector molecule and regulatory protein are involved in its regulation? Explain how the binding of the effector molecule affects the...

Q: What types of molecules can bind to a non-coding RNA

What types of molecules can bind to a non-coding RNA?

Q: Transcriptional regulation often involves a regulatory protein that binds to a segment

Transcriptional regulation often involves a regulatory protein that binds to a segment of DNA and a small effector molecule that binds to the regulatory protein. Do each of the following terms apply t...

Q: An operon is repressible—a small effector molecule turns off its

An operon is repressible—a small effector molecule turns off its transcription. Which combination(s) of small effector molecule and regulatory protein could be involved in this process? A. An inducer...

Q: Some mutations have a cis-effect, whereas others have a

Some mutations have a cis-effect, whereas others have a transeffect. Explain the molecular differences between cis- and transmutations. Which type of mutation (cis or trans) can be complemented in a m...

Q: What is enzyme adaptation? From a genetic point of view,

What is enzyme adaptation? From a genetic point of view, how does it occur?

Q: In the lac operon, how would gene expression be affected if

In the lac operon, how would gene expression be affected if each one of the following segments was missing? A. lac operon promoter B. Operator site C. lacA gene

Q: If an abnormal repressor protein could still bind allolactose but the binding

If an abnormal repressor protein could still bind allolactose but the binding of allolactose did not alter the conformation of the repressor protein, how would the expression of the lac operon be affe...

Q: Discuss the common points of control in eukaryotic gene regulation.

Discuss the common points of control in eukaryotic gene regulation.

Q: Explain how phosphorylation affects the function of the CREB protein.

Explain how phosphorylation affects the function of the CREB protein.