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

List and describe different sediments that can be seen in

List and describe different sediments that can be seen in urine and differentiate between normal and abnormal sediments.

Does the environment exert an influence on the phenotype

Does the environment exert an influence on the phenotype? What are some examples of phenotypical characteristics that present two or more varieties and of phenotypical features that do not vary? In relation to the genes ...

How might 32p and 35s be used to demonstrate that the

How might 32P and 35S be used to demonstrate that the transforming principle is DNA? Briefly outline an experiment that would show that DNA rather than protein is the transforming principle.

A 74-year-old woman is transported to a regional burn

A 74-year-old woman is transported to a regional burn center after being rescued from a house fire. Apparently, a space heater was knocked over and an area rug caught fire. The fire quickly spread throughout the house. S ...

Dolly dolly and more dollyit all started with a sheep named

Dolly, Dolly, and More Dolly It all started with a sheep named Dolly. In the mid-1990s, scientists proved convincingly that after decades of trying, we could, indeed, clone mammals - and even possibly, human beings. Unsu ...

What are the characteristics of tropical waters temperate

What are the characteristics of tropical waters, temperate waters and polar waters?

Which common characteristics is not shared by birds and

Which common characteristics is not shared by birds. and mammals? Breathing using lings Viviparity warm blooded nature.

Suppose you bring 100 pounds of groceries into your home

Suppose you bring 100 pounds of groceries into your home each week. Please estimate how many pounds of each type of waste leaves your home. Does this add up to 100 pounds? Where do the various forms end up?

Is anolis cristatellus more closely related to anolis

Is Anolis cristatellus more closely related to Anolis occultus or Anolis evermanni?

Sickle cell anemia is a very severe conditiona explain the

Sickle cell anemia is a very severe condition. a) Explain the condition and the alleles of the person with the condition and why it is a serious problem; b) What type of chromosomal disorder causes the condition; c) If t ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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