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Assume you are an ecologist studying a population of gerbils that can be found in nature with 3 different colors. An individual gerbil can be, dark brown, medium brown, or light brown. There are 2 alleles for this gene B and b. The color trait is determined by incomplete dominance. This is a case where one allele is not dominant over the other but instead heterozygous individuals show an intermediate phenotype. In this case of incomplete dominance Dark brown individuals are homozygous BB, medium brown individuals are heterozygous Bb, and light brown individuals are homozygous bb. You spend a night trapping and catch.
10 Dark brown gerbils10 Medium brown gerbils10 Light brown gerbils
What is the gene pool in this population?What is the gene frequency in this population?
Explain how genetic drift could alter the gene frequency in a population. Use your data from the genetic drift experiment to support your answer.
A different walnut rooster was crossed to a rose hen, and all the progeny were walnut. What are the probable genotypes of the parents.
Ribozymes have various catalytic activities with reactions that follow classical enzyme kinetics other than with low catalytic rate.
As a result of single intake of 6.3x10^3 Bq of a radionuclide, a particular organ will receive doses of the 0.2 mGy from a low energy beta particles and 0.05 mGy from the alpha particles during next 50 y.
Explain the sequence of events that underlie an action potential. Be sure to include all relevant ion channels, and the activity of each one during each of the major phases of the action potential.
Suppose that you require to dilute a 3mM solution to a concentration of 1 x 10-6 M. Pipettors that dispense volumes ranging from 10~100.
A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and then incubates each drug dilution series with a standard amount of a patient's isolated pathogen. What is this micro biologist setting up.
Explain how many kinetochores are there within the human cell at mitosis? Surprise, your boss has invited himself or herself to dinner! All you have is some wilted, day old lettuce.
Explain the epidemiological attributes of this episode. In which special circumstances can cross-sectional surveys be utilized to test the hypotheses? In your answer explain briefly the characteristics of the cross-sectional study.
In mice, the A y allele of agouti mice is ecessive lethal allele, but it is dominant for yellow coat color. What phenotypes and ratios of offspring would you expect from the cross of a mouse
A friend has just returned from a trans-Atlantic jet aircraft flight and reported that the plane dropped about1000 m when it entered an "air pocket." Explain to a friend what apparently happened to cause this drop.
Describe how a slight (but smooth) contraction differs from a vigorous contraction of the same muscle using the understandings of multiple motor unit summation.
compute the isoelectric point of a protein. It would also be helpful if you could declare any constants (i.e. pH=5) in advance of both problems.
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