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Tay Sachs, an autosomal recessive genetic disease in humans has a frequency (q2, assuming random mating) of about 2x10-6; assuming random mating, therefore, the frequency of the Tay-Sachs allele, q is about 1.4x10-3 . Tay-Sachs sufferers usually die within two years (s=0.9). If this disease is at mutation-selection balance, What is mutation rate. Please show work and formulas .
You learn that a certain strain of bacteria has an interesting replication pattern. Every 5 hours, the number of bacteria colonies increase by 17%.
What is estimated density of firs in the forest. Why then is the gene called Dorsal, and not, for instance, Ventral.
Assume that a daughter of a mother without the allele and a father with the allele marries a man with hemophilia. What is the possibility that the daughter's children will develop the disease? Describe how to determined the probability.
The DNA sequence of a codon in a gene was changed from AAT to AAC. This type of mutation is known a(n) as.
Imagine a large island with many clipbirds. On that island, 25% have large beaks, 50% have medium beaks, and 25% have small beaks. Far away.
Give examples of 2-different relationships that fungi have with other organisms. Indicate the type of relationship and explain why it was classified as such.
Although animals do not have glyoxylate cycle its is still possible to find out radioactively labelled carbon atoms from triacylglycerols incorporated into glucose.
List and describe at least three cellular features of bacteria that could be targeted to inhibit or kill bacterial pathogen. Which is a significant flaw in this experimental set-up.
The F- strain is unable to synthesize these amino acids; therefore, they must be supplied in the growth medium. Utilize the results from replica-plating to reply the questions.
A new dominant mutation occurs in a population of red-winged blackbirds that triples the size of the red shoulder patch in males. Individuals expressing the new mutation are far more conspicuous to predators and this causes their survival to be re..
A calorie is the amount of heat required to raise the temp of one gram of water by 1°C (1 cal = 4 J). A marine iguana from the Galapagos Islands weighs about two kg.
which mode of action of an antiobiotic is least likely to cause side of effects in a ptient.
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