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In Drosophila, a cross between a male and female from a mutant strain with plum-colored eyes yields 2/3 progeny with plum-colored eyes and 1/3 progeny with red (normal-colored) eyes. A cross between a male and female from a mutant strain with stubble (short) bristles yields 2/3 progeny with stubble bristles and 1/3 with normal length bristles. Both genes are autosomal and assort independently.
Predict the ratio of progeny produced by a mating between two flies with plum-colored eyes and stubble bristles.Give your answer as a ratio in the order plum eyes with stubble bristles:plum eyes with normal bristles:normal eyes with stubble bristles:normal eyes with normal bristles. Reduce the ratio to smallest numbers, e.g. 7:3:2:1.
Radiation therapy for cancer works because a cell's DNA is exposed during mitosis and most vulnerable to damage from radiation. Because cancer cells are uncontrollably undergoing mitosis.
Suppose you are purifying a protein on a weak cation exchanger (pH 7.5) and it comes off at 300mM salt. predict what salt concentration (lower, same, higher) the protein would come off if you used a strong cation exchanger.
What phenotypes would you expect in the F2, and in what actual numbers (not ratios) would you be expecting to find them. Describe the process of speciation. Comprise in the discussion the factors that can contribute to the maintenance of genetic isol..
Provided the rising rates of hypercholesterolemia and hypertension in the United States and other industrialized nations, you are interested in studying the importance of cholesterol transport in the sodium.
Compare and contrast the metabolic changes in each tissue under the absorptive state and fasting state (liver, adipose, skeletal muscle).
Determine the frequency of the heterozygous genotype if the homozygous genotype frequencies are .0025 (BB), 0.9025 (bb)?
A population is composed of equal numbers of the genotypes AA, Aa, aa. The offspring produced by these genotypes number 756, 699, and 420, respectively.
Occasionally an asteroid will break into fragments due to a collision. These fragments can leave the asteroid belt and some even make their way to Earth.
compare and contrast oblique reflected light microscopy with oblique transmitted light microscopy by describing how one bacterial species looks using both techniques. Strengths and weakness of each?
The antibiotic Gramicidin A can transport Na+ ions into a certain cell at the rate of 5.0 x 10^7 Na+ ions channel^-1 s^-1. Calculate the time in seconds to transport enough Na+ ions to increase its concentration.
Pick one species of living organism each (one plant and animal that you like), and describe their habitat and the range of conditions in which they have adapted to live.
Thiol proteases are a widely distributed group of proteases with a mechanism somewhat similar to that of the serine proteases the family of enzymes which includes chymotrypsin.
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