Question
In: Biology
The lac operon consists of several genes that encode enzymes required for metabolizing lactose. The expression...
The lac operon consists of several genes that encode enzymes
required for metabolizing lactose. The expression of the lac operon
is regulated by the presence of lactose and glucose.
Q) What changes could you make to the lac operon to make the
transcription from it independent of the presence or absence of
lactose?
Solutions
gladiator answered 2 years agoRelated Solutions
The lac operon consists of several genes that encode enzymes required for metabolizing lactose. The expression...
The lac operon consists of several genes that encode enzymes
required for metabolizing lactose. The expression of the lac operon
is regulated by the presence of lactose and glucose.
Q) Describe the regulation operon when the level of glucose is
low and the level of lactose is high?
The lac operon consists of several genes that encode enzymes required for metabolizing lactose. The expression...
The lac operon consists of several genes that encode enzymes
required for metabolizing lactose. The expression of the lac operon
is regulated by the presence of lactose and glucose.
Q) describe the regulation operon when the level of glucose is
high and the level of lactose is high?
ara+ and lac+ are genes required for metabolizing the sugars arabinose and lactose, respectively, and ala+...
ara+ and lac+ are genes required for
metabolizing the sugars arabinose and lactose, respectively, and
ala+ and leu+ are genes required for synthesizing
the amino acids alanine and leucine. You are given the following
strains:
Strain 1: leu- ala+ ara+
lac+
Strain 2: leu+ ala- ara+
lac-
Strain 3: leu+ ala+ ara+
lac-
Strain 4: leu+ ala- ara-
lac-
Which of these strains will grow on minimal media with
glucose?
A.
2, 4
B.
2, 3, 4
C.
3
D....
Which of the following genes of the Lac operon encode cis-acting regulatory elements?
Which of the following genes of the Lac operon encode cis-acting regulatory elements? Lacy Lacl None of these answers is correct LacA Lacz
A mutation prevents expression of the CAP protein. Will the Lac operon be expressed when lactose...
A mutation prevents expression of the CAP protein. Will the Lac
operon be expressed when lactose levels are high and glucose levels
are low? Explain your reasoning.
In E coli the lac operon is used to control the expression of the genes involved...
In E coli the lac operon is used to control the expression of
the genes involved in the used and metabolism of lactose . describe
how the genes are not expressed in the absence of lactose.
describe how the genes are expressed when lactose is present
both in the presence and of glucose. what would happen if there
were an l- mutation? what would happen if
there were an Oc mutation? which one of those two
mutations is recessive ?
ASAP In E.coli the lac operon is used to control the expression of the genes involved...
ASAP
In E.coli the lac operon is used to control the expression of
the genes involved in the use and metabolism of lactose. Describe
how the genes are not expressed in the absence of lactose. Describe
how the genes are expressed when lactose is present, both in the
presence and absence of glucose. What would happen if there were an
I- mutation? What would happen if there were an Oc mutation? Which
one of those two mutations is recessive?
How might the presence/absence of lactose affect the lac operon expression in the context of glucose-mediated...
How might the presence/absence of lactose affect the lac operon
expression in the context of glucose-mediated catabolite
repression?
There are several important genes in the lac operon. Describe the wild type action and effects...
There are several important genes in the lac operon. Describe
the wild type action and effects of the lacI, the operator, the
lacZ, and the lacY (4 pts) and how they effect β-galactosidase
expression (6 pts). Then explain how these mutants affect
β-galactosidase expression (1 pt) and why (1 pt).
IsocZ+Y+
I+o+Z-Y+
I+o+Z+Y-
Iso-Z-Y+
I+ocZ+Y-
Question. Discuss the expression of structural genes in lac operon, when activator (CAP binding site) of...
Question. Discuss the expression of structural genes in lac
operon, when activator (CAP binding site) of lac operon is mutated
and growth medium is supplemented with only lactose (glucose is
unavailable) as a carbon source. Support your discussion with a
simple illustration including elements of lac operon.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- An investor is considering purchasing a Treasury bond with a 20 year maturity, an 8% coupon...
- Write a program that copies the contents of one file to a destination file. This program...
- how to conduct a marketing mix for 3d crest white strips
- Is big data analytics used for service innovation at Amazon? If so, please write a brief...
- A shrink-fit process has been used to enhance the pressure carrying capacity of a cylinder. During...
- Ten-year zero coupon bonds issued by the U.S. Treasury have a face value of $1,000 and...
- The Blossom Department of Transportation has issued 25-year bonds that make semiannual coupon payments at a...
ADVERTISEMENT