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

A bond with a par value of 1000 and a semi annual coupon

A bond with a par value of $1000 and a semi annual coupon has a nominal yield to maturity of 5.3% and a current price of $920. If the bond has 6 years to maturity, what is its current yield?

Which cultures would be more likely to focus on external

Which cultures would be more likely to focus on external controls? Which cultures would consider direct controls to be more important than indirect controls? Be specific and explain your answer.

Give the other component that makes up the cell membrane

Give the other component that makes up the cell membrane apart from the protein layer?

Nutrition amp metabolismdefine nutrient and list the six

Nutrition & Metabolism Define nutrient and list the six major categories of nutrients Know the most abundant macronutrients Define the absorptive and post-absorptive states. In which state is the body storing excess fuel ...

Is it appropriate to say that all changes in the nucleotide

Is it appropriate to say that all changes in the nucleotide sequence of protein-encoding DNA result in new alleles? Explain. (This is sort of a judgment call. It depends on how broadly or narrowly you define the term all ...

Assignmentshort answeressay write your answers and submit

Assignment Short Answer ESSAY. Write your answers and submit assignment via the attachment. Please be specific and use examples from the textbook when appropriate 1) What 4 factors do you think should be taken into consi ...

What are the differences between the roles of mainstream

What are the differences between the roles of mainstream and alternative health care providers? Do you feel that these types of health care workers are given the respect as professionals that they deserve? Why, or why no ...

You believe that the cytosolic protein p007 is involved in

You believe that the cytosolic protein p007 is involved in mediating growth hormone-stimulated proliferation in cells. You wish to establish a cell model using your cultured fibroblasts. Provide clear explanations to the ...

Two immune system questionsactivated t-helper cells aid in

Two immune system questions: Activated T-helper cells aid in humoral immune responses by releasing cytokines which promote antibody production, phagocytosis, neutralization and apoptosis. Which parts of this statement ar ...

Should humans restore natural ecosystems disturbed by

Should humans restore natural ecosystems disturbed by natural events, such as a hurricane or volcano? Why? What if a species is likely to go extinct if the ecosystem is not restored? What is an example?

  • 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