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Question 1-As you have learned viruses must be able to package their genomes within a small capsid. The picture below is an atomic detail model of an icosohedral (+) strand RNA virus with a diameter of 30 nm. Most models of viruses show the genome as small “squiggly” lines, but this model demonstrates how the genome is tightly packed within the capsid. Assuming that the virus capsid is spherical, work with your classmates to calculate what is the maximum genome size (in nucleotides) that can fit into the capsid. How long in millimeters would this largest possible RNA genome be?
Question 2-The largest known virus was reported this past summer. It is so large it can be viewed with a light microscope and has a genome size of 2.45 mega bases, which is larger than many bacteria. One of the pictures below is of this new virus inside a host amoeba, while the other is a picture of a similar sized intracellular bacterium infecting a host eukaryotic cell. Given what you learned last week on the different methods for assaying/characterizing viruses as well as the differences between viruses and cells; propose experiments you could perform to determine whether the pictured entities are viruses or bacteria.
q1. a man heterozygous for a disease gene d is also heterozygous for an rflp linked at the distance of 4 map units from
The investigators also noted that 35 of the men had withdrawn from the study at the third evaluation. Based on this information, calculate and interpret the incidence density rate of prostate cancer in this group.
How does the structure of the plasma membrane depend on the structure of the phospholipids molecules? How does this relate to selective permeability?
Explain a specific example of a cross between two parents, each homozygous for different traits, which would result in a phenotype that is distinct from either parental phenotype.
Discuss how does the concept of natural selection explain variations in species descended from a common ancestor?
A geneticist makes a cross between two homozygous strains of maize with three different mutations. For symbols, you can use a capital to indicate the dominant allele.
Need help calculating the column of years of economic supply left and years of economic supply left if everyone consumed at U.S. rate
Identify the elements and the number of atoms of each element in each of the following compounds.
Imagine that a pharmaceutical company, specifically the research and development division, just hired you. Your first assignment consists of developing a new anticancer drug to control the high rates of glycolysis in tumor cells.
q1. the most important group of g protein-linked receptors contain seven transmembrane alpha helices. the amino end of
Contrast the epithelium of esophagus with that of the stomach. Explain why is each epithelial type best suited to the function of its respective organ?
What is the estimated frequency of allele a in the gene pool and what proportion of the population is probably heterozygous (Aa) for this trait
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