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You have an F- strain of E. coli that is resistant to strepto- mycin (Str(r)) but requires the following amino acids for growth on minimal medium: arginine, cysteine, methionine, phenylala- nine, and proline. You do a series of interrupted mating exper- iments with two different Hfr strains, Hfr1 and Hfr2, both of which are wildtype for all amino acid markers, but are Lac(-) and Str(s) (sensitive to streptomycin).The following data are the times in minutes at which you first observed recombinant progeny containing the indicated amino- acid marker (prototrophy).Results of F- x Hfr1 cross Arg+ = 5Cys+ = 65Met+ = 75Phe+ = 35Pro+ = 10Results of F- x Hfr2 cross Arg+ = 40Cys+ = 70Met+ = 60Phe+ = 10Pro+ = 35Give the order of genes on the Hfr1 chromosome in the order transferred (e.g. CysPheMetArgPro)Give the order of genes on the Hfr2 chromosome in the order transferred (e.g. CysPheMetArgPro)You do a new mating experiment with the same strains. You interrupt the mating after 60 minutes and plate on a medium that selects for progeny that are re- combinant for the phenylalanine gene (Phe+). What sup- plements/antibiotics must be added to the minimal medium
how A primary oocyte gives rise to
What is the difference between theory and hypothesis and explain the importance for a hypothesis to be testable and falsifiable in order for the scientific method to be applied
Determine the frequency of the dominant allele and frequency of the homozygous dominant individuals?
Molly requires to make one liter of a 1.5 M glucose solution for use in an experiment. The molar mass of glucose is 180.16 g/mol.
Determine which of the following statements would be inaccurate regarding the discovery of the DNA molecule?
what are three parts Cell respiration has. Where in the cell is each found, the molecule(s) that enter each, the molecules at the end of each, and the number of ATPs harvested from each.
You have successfully developed two new inhibitors (Alice-1 & Alice-2) for the mutant peptidase mentioned in question To understand how the inhibitors work, you carried out enzyme assays measuring the ability of the mutant peptidase.
How various of each possible phenotype. A locus in Australian Bearded Dragons is involved in the production of pigment. When heterozygous parents mate, 75% of the progeny are colored and the rest are albino.
Male frogs give calls that attract female frogs to approach and mate. Researchers examined mating calls of closely related tree frogs in South America. What outcomes be able to occur where the ranges of two species overlap.
Using Rasmol produce an image of oxidoreductase structure code 2XXE that, clearly illustrates the location of the catalytic site of the enzyme. State and show in an image the active site residues.
Determine what is the currently accepted scientific explanation for anthropogenic global climate change?
Select a specific gene and a specific alteration. Explain the effects of the modifications and why it might contribute to the cancer.
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