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Question: The following effective population sizes were recorded for a population over 5 generations; 100, 120, 17, 40, 88. Estimate the harmonic mean estimate of effective population size for this population?Question: Imagine you have two populations of size N = 4 and N = 20. Allele frequencies in each population are as follows; p =0.5 and q = 0.5. Use the binomial theorem to demonstrate why it is much more likely that fixation and loss of alleles will occur in the population of 4 than the population of 20.
Assume many of the atoms of nitrogen in a double-stranded molecule of DNA, of isotope N-14, were replaced with the isotope N-15
The external faces of some of the proteins in the plasma membrane have carbohydrate groups attached to them.What role do such "sugar-coated" proteins play.
Suppose that the length of ten base pairs of DNA found in one turn of the helix is 34 A, what is the average length of a human chromosome in centimeters?
A bowl of potato salad was left on picnic table for three hours on hot summer day. The microbial load was 300 CFU/g when the salad was put on table.
GTP is again added to the redissolved pellet proteins, and the solution is again warmed for a few minutes. Then centrifugation at similar speed described above is again performed. This process is repeated several times.
Select a specific gene and a specific alteration. Explain the effects of the modifications and why it might contribute to the cancer.
The human body produces a variety of immunoglobulins. Explain why does the body need so many different classes and subclasses of these immunoglobulins?
In most biology experiments the relationship between the independent and the dependent variable can be best described as cause and effect. Describe.
A sample of butterflies contained 50 percent yellow-winged individuals and 50 percent black-winged individuals. In this species, wing color is determined by a single gene with two alleles.
Why in the world plants evolved such beautiful colours and shapes and create such wonderful scents. What do you tell her.
Explain the differences between eukaryotic and prokaroytic cells. Include in your discussion three phenotypic systems used to classify microbes.
Develop an experiment in which you will test the effect of an acidic fluid on enzymatic activity. To complete this assignment, it may be useful for you to review the Scientific Method Tutorial.
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