A cytogeneticist is analyzing a karyotype using G-banding. Describe how dark and light bands differ in their chromatin structure and why they stain differently Explain how these banding patterns allow chromosomes to be distinguished from one another

What distinguishes an Hfr cells from an F+ cell? 

A researcher mixes two bacterial strains and observes gene transfer. When the experiment is repeated using a filter (preventing cell contact), gene transfer no longer occurs. What mechanism of horizontal gene transfer is responsible? Explain your reasoning.

Why are bacteria especially useful for genetic studies?

Extra Credit (Optional): What is one advantage and one disadvantage of lysogeny for a bacteriophage? (2 pts)

Reverse transcriptase is important for HIV because it:

How many milliliters of a 12.5% glucose solution contain 125 grams of dextrose?

A physician’s order sheet contains the following entry:Biaxin (clarithromycin) 7.5 mg/kg p.o. q.12h.How much of the drug will be administered per dose? ________ mg for every kg of bodyweight 1.

Order: Neulasta (pegfilgrastim) 6 mg subcut. once per chemotherapy cycle at least 24h after chemotherapy. Read the label in the figure. How many milliliters will you administer?

What is the strength (expressed as a percent) of a 200 milliliter solution that contains 10 grams of dextrose?