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In a sample from a grasshopper population, you find four alleles at a particular locus. The frequencies of A1, A2, A3, and A4 are p1= 0.50, p2=0.30, p3=0.15, and p4=0.05. Assuming Hardy-Weinberg equilibrium, calculate the expected proportion of each of the ten possible genotypes (e.g., that of A2A3 should be 0.09). Show that heterozygotes, of all kinds, should constitute 63.9 percent of the population. In a sample of 100 specimens, how many would you expect to be heterozygous for allele A4? How many would you expect to be homozygous A4A4?
Male frogs give calls that attract female frogs to approach and mate. Researchers reviewed mating calls of closely related tree frogs in South America.
The stimulus for secretion of neurotransmitters into the synaptic cleft is an increase in?
The maintenance of homeostasis is of major importance to all organ systems in the body and the overall survival of the individual. Explain how homeostasis is the maintenance of a dynamic range of environmental qualities rather than holding the int..
Discuss and describe three differences in transcription between prokaryotes and eukaryote and also explain two molecular mechanisms for allelic variation.
G for complete oxidation of glucose is -686 Kcal/Mole. According the G for ATP and number of ATP's produced from the complete oxidation of glucose calculate the efficiency of biological oxidation of glucose by respiration.
Design an experiment to determine the optimal temperature for enzyme function, complete with controls. Where would you find the enzymes for this experiment? What substrate would you use?
A family pedigree for a trait shows a fatal disorder cropping up in members of a family in both sexes and in every generation, but, surprisingly, it also shows that unrelated husbands and wives marrying into this family are also equally prone to d..
As we have discussed in class, individual phylogenetic methods are best suited to particular kinds of troubles. For each of the following data sets, assess the suitability of maximum parsimony to that data set.
Glycogen is a polymer, so it has more energy than an equivalent number of glucose molecules. How does the cell find the energy necessary to make this storage product?
What effect might this have on cell lineages during development. Describe the physical changes that would occur in SIM medium if you inoculated an organism that was negative for hydrogen sulfide but positive for indole production and motility.
Make a table describing types of membrane transport. Provide examples when it is used.
Would you expect that trans-acting RNA to be active in the cytoplasm or in the nucleus? Justify your answer in a sentence.
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