Draw a gene regulatory diagram for an inducible operon when the ligand is not in the...

Draw a gene regulatory diagram for an inducible operon when the ligand is not in the environment.

Solutions

Expert Solution

•Inducible operon:- The Lac operon in E.coli is an example of inducible operon. Operon only express in the presence of substance inducer [here ligand], that triggers the transcription [gene expression]. Here the lactose molecule bind with the repressor protein produced by lac i gene and start the expression of lac functional genes Lacz , lac y, Lac a, and produce enzyme beta galctosidase , permease and trans acetylase.

•In the absence of lactose, the lac repressor, laci , halts production of the enzymes encoded by the lac operon and block the production [expression ] of lac functional genes Lacz , lac y, Lac a.

see photo :-

gladiator answered 1 year ago

Next > < Previous

Related Solutions

Explain what are gene regulatory operons,with lac operon and tryptophan operon examples by drawing figures for...

Explain what are gene regulatory operons,with lac operon and tryptophan operon examples by drawing figures for each?

1.)A.)The lac operon is inducible by the presence of lactose. Loss-of-function mutations in the lacI gene,...

1.)A.)The lac operon is inducible by the presence of lactose. Loss-of-function mutations in the lacI gene, which encodes the lac repressor (pick all that apply): A.)slow down the isomerization of lactose into allolactose B.)decrease the amount of permease activity in the cell in the presence of lactose. C.)prevent loss-of-function lacZ mutations from making the lac operon uninducible D.)are recessive to wild type B.)Mutations that eliminate the lacO operator site (pick all that apply): A.)slow down the isomerization of lactose into...

Is the lac operon a repressible or an inducible operon? What happens in the absence of...

Is the lac operon a repressible or an inducible operon? What happens in the absence of lactose? What happens in the presence of lactose? Is the trp operon a repressible or an inducible operon? What happens in the absence of tryptophan? What happens in the presence of tryptophan?

Is the lac operon a repressible or an inducible operon? What happens in the absence of...

In a gene regulatory network, describe the differences between: a) Inducible versus Repressible control systems b)...

In a gene regulatory network, describe the differences between: a) Inducible versus Repressible control systems b) Up and Down regulation

Bacterial gene expression (cont): A. What is an allosteric regulatory molecule? B. For the trp operon,...

Bacterial gene expression (cont): A. What is an allosteric regulatory molecule? B. For the trp operon, describe how this repressible operon is regulated

Bacterial gene expression (cont): A. What is an allosteric regulatory molecule? B. For the trp operon,...

Bacterial gene expression (cont): A. What is an allosteric regulatory molecule? B. For the trp operon, describe how this repressible operon is regulated

Describe the difference between a repressible operon and an inducible operon. Give an example of either...

Describe the difference between a repressible operon and an inducible operon. Give an example of either type of operon and describe the mechanism by which the operon responds to an environmental cue. Describe the differences between general transcription factors and specific transcription factors and their impact on gene expression. Compare and contrast microRNA (miRNA) and synthetic RNA (siRNA). Be sure to include their occurrence in nature, and their mechanism(s) of action.

1. Is thelacoperon a repressible or an inducible operon? What happens in the absence of lactose?...

1. Is thelacoperon a repressible or an inducible operon? What happens in the absence of lactose? What happens in the presence of lactose? Is the trp operon a repressible or an inducible operon? What happens in the absence of tryptophan? What happens in the presence of tryptophan?

11. The lacZ gene, responsible for lactose metabolism is an inducible gene regulated by a repressor...

11. The lacZ gene, responsible for lactose metabolism is an inducible gene regulated by a repressor protein. Answer the following questions regarding how this gene is regulated (3 pts each) a. What is the default setting in reference to the expression of lacZ? b. What role does lacI play in regulating the system? c. What happens when the system is exposed to lactose? d. What happens after the cell digests the lactose supply

Subjects