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In interrupted mating experiments using an Hfr strain in E. coli, you find that two genes, bio and arg, are transferred at about the same time. A third gene, pab is transferred slightly later. In order to determine the gene order, you mate an Hfr strain that is pab+ bio+ arg+ with an F- strain that is pab- bio- arg-, select 3000 recombinant pab+ clones from the recipient strain, and test them for the presence of arg+ and bio+. You obtain the following results:pab+ bio+ arg+: 2607 clones pab+ bio- arg+: 61 clonespab+ bio+ arg-: 2 clones pab+ bio- arg-: 330 clonesPart AWhat is the order of the three genes?
Was there any noticeable effect on the germination rate of the radish seeds as a result of the pH? Compare and contrast the growth rate for control with the alkaline and acidic solutions.
For each of the E. coli strains given below, estimate the effect of the genotype on expression of the trpE and trpC genes in the presence and absence of tryptophan.
How is the DNA of prokaryotes organized? In chromosomes? If so, how many, what shape? what are the characteristic shapes of individual bacteria cells? Give Latin and English terms.
A very short physiology student is asked to analyze the blood pressure of a very tall student. She decides to measure the blood pressure at the level of the tall student's foot while he is standing
A double-stranded fragment of viral DNA, one of whose strands is shown below, encodes two polypeptides called vir-1 and vir-2. Adding this double stranded DNA fragment to an in vitro transcription and translation system yields
At start of abduction of arm, deltoid muscle is assisted by: subclavius., supraspinatus, coracobrachialis, Biceps brachii.
which statements about the sodium-potassium pump is true.
Another dog, Billy, has three restriction sites for this enzyme in his genome. For this problem suppose there is only one chromosome in dogs.
Explain the hierarchy of plant structure using the stem as an example organ and follow it through each stage until you reach the level of cell. Only use the vascular tissue systems.
Compare and contrast storage nutrients in angiosperm seed as compared to gymnosperms?
A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and then incubates each drug dilution series with a standard amount of a patient's isolated pathogen. What is this micro biologist setting up.
When ten molecules of pyruvic acid are broken down completely to CO2 and H2O in the presence of oxygen, how many molecules of ATP will be produced?
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