Give a short discussion of the lytic and lysogenic phases in the lifecycle of certain viruses. the discussion should include the common stages encountered in viral replication.

A series of experiments shows that oil content in a diploid grain is influenced by five genes (a through e) with additive alleles. The highest-producing strain has 30o% oil content; the lowest has 10%. A plant of unknown genotype has an oil content of 22%. What is a possible genotype for this plant (+ = additive alleles)? O a+ a+ b+ bccddee O aa b+ b c+c d+ d+ e+ e+ O a+ a+ b+ b+ccddee O a+ a+ b+ b+ c+ c+ d+ de+ e O a+ a+ b+ b+ c+ c+ d+ dee

Define and describe prions, including their replication process and contrast them with viruses.

Compare and contrast the structure, life cycle, and host cell type of naked and enveloped viruses.

viral genome needs to get to the nucleus for the virus that replicates in the nucleus. the viral nucleocapsid has to pass two barriers (i.e., plasma membrane and nuclear membrane). Compare and contrast the mechanisms by which the viruses penetrate the two membranes.

Please discuss the different types of viruses that can cause diseases in humans.

Below is a figure for the cycle of the Influenza virus. Explain the shape.

The omicron variant of SARS-CoV-2 has the amino acid substitution G339D in the spike protein on the virus surface. In cellular fluids at -pH 7 the wild type spike protein has a net negative charge. This substitution will make the spike protein: less negative absorb UV light more strongly at 280 nm more negative more hydrophobic

Identify the numbered steps of this viral life cycle/replication cycle depicted here.

Describe the mechanism of replication of the eukaryotic virus SV40.