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The ß-hemoglobin locus in humans is implicated in resistance to falciparum malaria. Estimates of fitness vary geographically, but suppose that, in one particular area with endemic malaria, the relative fitnesses of genotypes involving the alleles A ("normal"), S (sickle) and C are:
genotype AA SS CC AS AC SC
rel fit 0.82 0.15 1.20 1.00 0.82 0.55
If in the population the frequencies of the three alleles are (i) pA=0.9000, pS=0.0500 and pC=0.0500 or (ii) pA=0.6000, pS=0.2000 and pC=0.2000, what would be the frequencies in the next generation? (Assume that the generations are separate and maintain 4 decimal places throughout your calculation). What do these results suggest about the final outcome of selection given these two different starting conditions (i and ii)?
Two intracellular molecules A and B are continually synthesised at a constant rate of 1000 per molecule per cell. Each molecule of A survives an average of 100 seconds. While each molecule of B survives an average of 10 seconds.
What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration.
At a talk by a visiting scientist, you learn about a strain of bakers' yeast that contains a mutation called gal1- in its galactokinase gene. Because this gene is needed to metabolize galactose, the mutant strain cannot grow in galactose medium.
There are several examples of eukaryotic cells. Algae, Fungi, Plants, and Animals are all comprises of eukaryotic cells.Select either a plant or an animal cell.
10) The rhomboid muscles are innervated by (the) A) Dorsal scapular nerve. B) Cervical nerves. C) Accessory nerve. D) Long thoracic nerve. E) None of the above.
Jennifer has the stomach flu that is going around campus and has been vomiting profusely for the past twenty-four hours. Not only has she been unable to keep down fluids or food.
Biology Quiz: Using information at the CDC Influenza website, What is the most prevalent strain of influenza that is circulating in the 2012-13 flu season (Select one)?
Set up the suitable two-by-two table and determine a measure of association between current smoking and myocardial infarction. Determine a measure of the excess risk of myocardial infarction in cigarette smokers that is attributable to their smoking.
Approximately what percentage of the energy of glucose is transferred to storage in ATP as the result of the complete oxidation of glucose to CO and water in cellular respiration.
define a genetic cross between two sufferers
What do you think would happen if a person had a mutation that prevented the jaw part of their HLA molecules from becoming the correct shape.
The overall reaction of aerobic respiration of glucose is summarized as.
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