Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Consider a culture into which two E. coli strains are inoculated. Strain A is normal with g=21 min at 37 degrees C, and 42 mins at 27 degrees C. Strain B has a temperature-sensitive mutation, such that g=55 mins at 37 degrees C, and 39 mins at 27 degrees C.
We inoculate equal amounts of cells (1 ml of each starter culture whose population is 1 x 10^6 cfu/ml) into each of two separate 1 liter volumes of LB broth at time=0. One of the flasks is incubated at 37 degrees C, one at 27 degrees C.
Assuming constant exponential growth (i.e. no lag phase, and no exhaustion of nutrients), answer each of these questions:
1) After 6 hours of growth, what is the final concentraion of each strain in each flask?
2) What fraction of the total population is Strain A and Strain B in each flask?
3) How long would each flask need to go for one strain to become 90% of the population?
Describe the regulation of eukaryotic gene expression. Include what regions of DNA and what proteins are important and why? Include a discussion of post-transcriptional regulation.
Assume you have an invitro kit in mol bio lab and require to use it. It has all the ingredients to get yield of your product, which can be a protein or nucleotides.
Explain how adult stem cells can sense and respond to the nutritional status of an animal. Explain what kind of cues an adult stem cell can respond to, and where these cues are coming from.
Which characteristic of cell membranes might explain why fat-soluble substances such as chloroform and ether rapidly affect cells.
when conducting this test some microbiologists inoculate two sets of broth, one with carbohydrate and one without (PR Base Broth). Given that an uninoculated control is used to increase the reliability of the test, why would the second test of bro..
Create and observe bacteria in petri dishes for my own learning experience. I thought I was being sufficiently sanitary while heating the agar and pouring it into the plates.
Beaker A contains 25 percent salt solution. A differentially permeable bag (permeable to water not salt) containing 50 percent salt solution is allowed to float on top of the solution in Beaker A. What will occur.
The body’s oxidation of glucose is commonly described as the burning of fuel. Is this analogy correct? Explain your answer.
Acetoacetate may be reduced to 3-hydroxybutyrate. What serves as a better reducing agent, NADH or FADH2? Explain.
What will the instructor tell the students are the most ordinary cause of an MI.H ow various different antibody molecules potentially could be generated.
Outline an experiment to establish whether mature B-cells that are the immediate progenitors of memory cells transit a "second window" of tolerance susceptibility while undergoing somatic mutation during initial antigen challenge.
Natural selection raise the frequency of advantageous alleles. When a new allele is first created via mutation, it is at low frequency.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd