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Fruit fly bodies are typically light gray. A fruit fly mutant is identified with a dark gray body. It is known that the allele that causes dark bodies is recessive to the allele that produces light bodies. A true-breeding (homozygous) male fly with a light body is mated with a true-breeding female with a dark body. Predict the genotypes and phenotypes of the F1 and F2 flies produced by this cross assuming that the body color gene ia a) autosomal or b) X-linked.
The mean value of a trait is 250 units and the h2 for the trait is .50. A male and female measuring 240 and 280 units respectively are selected for breeding and they produce several offspring. Find expected value for the trait among their offspring.
He thinks that this move, combined with some increase in advertising, would enhance annual sales by 35 percent. By how much could advertising be increased with profits remaining unchanged.
What would DNA footprinting reveal about the DNA binding sites of a normal Lac repressor protein? A normal RNA polymerase.
Create a stretch of DNA that will encode for five or more amino acids. Which DNA sequence will encode for at least five amino acids?
Determine which of the following molecules or substances contain, or are derived from, fatty acids?
The habitat of one species of tropical fish is red coral reefs. The large majority of the fish in this population are red. A few individual fish carry a mutation that prevents the production of the red pigment.
In the 19th century the prevailing theory of inheritance was the BLENDING THEORY. According to theory of inheritance, crosses between individuals of differing phenotypes would produce F1 progeny.
A diagnostic of phlebitis was made. What is Phlebitis and what more serious condition may result if proper healing doesn't occur? What is the treatment for this patient and what will be the likely outcome from this disease.
Assume that the couple had a daughter with a normal color vision and a widow's peak. What is the chance that she is homozygous for both genes?
Describe the multiple levels of cdk regulation and the significance of regulated cdks in the regulation of the cell cycle.
he p K 1 , p K 2 , and pK R of the amino acid lysine are 2.2, 9.1, and 10.5, respectively. The p K 1 , p K 2 , and pK R of the amino acid arginine are 1.8, 9.0, and 12.5, respectively
Explain the chemotaxis system of E.coli and explain how it works to discern chemoattractant levels. Name specific proteins and molecules involved
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