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!
Bacterial cells can take up the amino acid tryptophan (Trp) from their surroundings, or, if there is an insufficient external supply, they can synthesize tryptophan from other small molecules. The trp repressor is a bacterial gene regulatory protein that represses the transcription of genes that code for the enzymes required for the synthesis of tryptophan. Trp repressor binds to a site in the promoter of these genes only when molecules of tryptophan are bound to it.
A. Why is this a useful property of the Trp repressor?
B. What would happen to the regulation of the tryptophan biosynthesis enzymes in cells that express a mutant form of Trp repressor that (i) cannot bind to DNA or (II) binds to DNA even if no tryptophan is bound to it?
C. What would happen to scenarios (i) and (II) if the cells, in addition, produced normal Trp repressor protein from a second, normal gene?
This week's lab activities pertain to taxonomy and classification. For this week's discussion, I would like for you to try to recognize an example in your every day life or work life in which you utilize
Wild-type fruit flies have brick-red eyes. A pure-breeding strain of wild-type flies was crossed with a pure-breeding strain with white eyes.
Intravenous injections are commonly performed with a hypodermic needle and syringe. Suppose that the dimensions of the needle are length = L,
Type your question hereHow is the plasticity of the brain throughout life evident in recovery from brain damage? What are some factors that determine its extent and facilitate recovery? What limits are there in recovery from injury in children? In..
How many chromosomes must be present
in pea plants, round seeds (R) are dominant to wrinkled seeds (r). For the cross between two pea plants with the genotype Rr and rr, list phenotypes of the parents, draw the punnet square, list the possible genotypes and phenotypes for offspring o..
What procedure ensures that pre-mRNA processing is co-transcriptional? Disucss ow are all three steps of processing sequentially controlled?
Microfilaments and microtubules have similarities and differences in their structures and mechanisms of polymerization. Please list 3 similarities and 3 differences between these polymers. (One is composed of actin and the the other of tubulin sho..
Assume that a mutation occurs in an intron of a gene encoding a protein. What would the most probable effect of the mutation be on the amino acid sequence of that protein.
Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous.
What is an animal? Include in your answer how animals are differentiated from other life forms. In particular, describe the similarities and differences between volvocine protozoa, members of the Phylum Porifera, and members of the Phylum Cnidaria th..
Explain how rapid evolution could help a species cope with and thrive in new or changing environment. please do not post links to answers or copy and paste super long answers.
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