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Both eye color and leg length are inherited in a dominant-recessive fashion in fruit flies. Fruit fly wings can either be wildtype (P), or have purple eyes (p), and either wildtype (S) or have short legs (s). Fill in the Punnett Square for this scenario. If you cross a female fly that is heterozygous for both eye color and leg length (p+ps+s) with a recessive male parent, what phenotypic ratio would you expect to get?
though , certain pairs of his progeny, when interbred, produced red and white progeny at a frequency of about 25 percent. Nick was soon removed from the stud lists of the Holstein breeders. Explain why, using symbols.
Suppose that in Drosophila melanogaster an XXY female with white eyes (due to the w^1 allele on both copies of an attached X chromosome) is mated with a male that has a yellow body (due to the y allele on the X chromosome).
Discuss a strategy and provide a diagram if necessary and methodology for overexpression, epitope tagging, isolation/purification, western blotting and confocal microscopy for an unknown alien protein that could be anarobic, and is sensitive to ox..
for transformation of Synechocystis, why do you first plate your transformant mixture on a filter on a BG - 11 plate with glucose, and the next day the TA transfers the filter with cells to a plate that contains kanamycin (rather than plating dire..
The parental cross in Drosophila is a mutant male fly (b/b . B/B) with a virgin wild-type female (+/+ . +/+) What are the expected phenotypic ratios for each sex AND the overall population of the F2 generation? There may not be 4 phenotypes for ea..
Drag the labels onto the graph to indicate which presynaptic neuron produced each change in the axon hillock's membrane potential. Assume that the same number of ligand-gated ion channels opens at each synapse.
Describe the contributions of the following eukaryotic microbes to the biofuels industry.
Explain the chemotaxis system of E.coli and explain how it works to discern chemoattractant levels. Name specific proteins and molecules involved
Determine channel length (in cm) needed for mixing by diffusion two solutions flowing at a speed of 1 cm/s, one of which is water and the other is a salt solution.
Describe how protein hormones versus steroid hormones play a role in transducting signals that can affect gene transcription?
Explain the possible fates of DNA that in brought into the recipient cell during generalized transduction.
The trend in the U.S. is having children later in life than previous generations. What effects may this trend have on the incidence of late-acting dominant lethal alleles in the population.
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