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Think about the trp operon. For each situation below, indicate whether the cell will synthesize the enzymes coded by trpE, trpD, trpC, trpB, and trpA and be able to synthesize trypophan.Can tryptophan be synthesized in the cell for the following (yes or no answer):A mutation in the promoter: RNA polyermase cannot bind.A mutation in the operator: cannot bind the repressor.A mutation in trpR: its product (the repressor) is nonfunctional.A mutation in trpD: the enzyme product is inactive.
If A/A x B/B is crossed with a/a and the F1 is testcrossed, what is the genotype and percenage of every progeny if the two genes are unlinked;
A hurricane in Caribbean devastates a small isolated island, destroying all but about a dozen of once dominant turpentine trees on the island.
A previous study has shown that freckles gene is located at the locus marked F, and hair color gene is located at the locus marked H, both on the long chromosome.
A cell attempts mitosis with only one spindle pole, but is otherwise normal. Which of the following is true for this cell?
Should society subject pregnant women to dietary restrictions during pregnancy to protect the fetus from the effect of defective genes they carry.
Assume you have found a new Xenopus gene that codes for a RNA binding protein. You are not sure what its function is but you are interested in finding out as much as you can.
If you transform bacteria with the plasmid library made in part b above, divide the transformatnts into 20 aliquots and find one has the insert of interest, now how many clones do you need to screen.
Determine the significance of the observation that knocking out MyD88 abrogates increases in Factor B and C3a but knocking out of TRIF does not ? Describe in molecular terms.
Define and contrast individual and class characteristics of physical evidence. Explain the different types of microscopes and usefulness in crime scenes.
When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across plasma membrane and various channel proteins close. What are these channels known as.
Assume you are studying a microorganism from a hot spring that uses organic carbon as an energy and carbon source.
If a maize plant is heterozygous for the alleles for pigmy and crinkly-leaf (both recessive to normal size of plant (S) and normal leaf (L) is self pollinated and 208 seeds are subsequently collected and germinated, how various would you expect to sh..
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