Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

For each of the E. coli strains below, determine the effect of the genotype on expression of the trpE and trpC genes in the presence and absence of tryptophan. In the wild-type strain (genotype: R+ P+ O+ att+ trpE+ trpC+), the trpE and trpC genes are fully induced in the absence of tryptophan and fully repressed in the presence of tryptophan.

Key:

R = functional repressor gene; Rn = product cannot bind tryptophan; R- = product cannot bind operator

O = functional operator; O- = operator cannot bind repressor protein

att = functional attenuator; att- = a deletion of the attenuator sequence

P = functional promoter; P- = a deletion of the trp operon promoter

trpE- and trpC- = produce non-functional protein products

1) R+ P- O+ att+ trpE+ trpC+

2) R- P+ O+ att+ trpE+ trpC+

3) Rn P+ O+ att+ trpE+ trpC+

4) R- P+ O+ att- trpE+ trpC+

5) R+ P+ O- att+ trpE+ trpC- / R- P+ O+ att+ trpE- trpC+

6) R+ P- O+ att+ trpE+ trpC- / R- P+ O+ att+ trpE- trpC+

7) R+ P+ O- att- trpE+ trpC- / R- P+ O- att+ trpE- trpC+

select numbers 1-7(above) for the problems below.

Trp = trpE (-), trpC (-); No Trp = trpE (-), trpC (-)
Trp = trpE (-), trpC (-); No Trp = trpE (+), trpC (+)
Trp = trpE (-), trpC (-); No Trp = trpE (+), trpC (+)
Trp = trpE (+), trpC (+); No Trp = trpE (+), trpC (+)
Trp = trpE (-), trpC (-); No Trp = trpE (+), trpC (+)
Trp = trpE (-), trpC (-); No Trp = trpE (-), trpC (+)
Trp = trpE (+), trpC (-); No Trp = trpE (+), trpC (+)

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943180

Have any Question? 


Related Questions in Biology

Assume the role of a research scientist who is applying for

Assume the role of a research scientist who is applying for grant money to fund research on ALS. Describe the particular area of research that you would investigate (drug-based therapies that would slow the progression o ...

Phylum arthropodathe earths largest phylum is arthropoda

Phylum Arthropoda The Earth's largest phylum is Arthropoda, including centipedes, millipedes, crustaceans, and insects. The insects have shown to be a particularly successful class within the phylum. What biological char ...

Huntingtons disease affects individuals late into adulthood

Huntington's disease affects individuals late into adulthood. Given what you know about how Natural Selection works, explain why Huntington's disease hasn't been eradicated from the population.

The ability of a person to roll their tongue is controlled

The ability of a person to roll their tongue is controlled by a single gene with two alleles. About 65% of people have the dominant allele, and can therefore roll their tongue. Stephanie cannot roll her tongue. Without y ...

Discuss the mechanisms and consequences of adh and

Discuss the mechanisms and consequences of ADH and aldosterone on the kidneys

Candy is a 13 year old who lives with her father and

Candy is a 13 year old who lives with her father and younger sister. Her mother died when Candy was 6 years old and her sister was 4 years old. Her father works a 12 hour shift full time to support himself and his daught ...

Explain why the removal of great sharks poses a threat to

Explain why the removal of great sharks poses a threat to bay scallops on the Atlantic Coast of North America, despite the fact that large sharks do not feed on scallops. Include the concept of a trophic cascade in your ...

Due to the prospect of interplanetary travel how would you

Due to the prospect of interplanetary travel, how would you attempt to Isolate and identify a bacterial infection acquired on another planet. This bacteria is unknown to use and does not appear in Bergey's or the Manuel ...

Identify the alga known for biological activity called

Identify the alga known for biological activity called bioluminescence?

1 starting with the umbilical vein listchart the general

1) Starting with the umbilical vein, list/chart the general flow of blood through the fetus of a pig. 2) What special features of the lung make it a useful organ for gas exchange?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen