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Which precautions would you follow to preserve Bacillus subtilis and what are the physical and chemical hazards of handling Bacillus subtilis?
Each of the following statements Explain a type of column chromatography . Sort the statements to the type of chromatography they describe. If statement can explain all of the types, place that statement in the category.
A cross is made between tall, red flowered plants and short, white flowered plants. Tall and red are dominant traits. Determine what the expected phenotypic ratios of the f1 and f2 generations should be.
Cross between pure red tomato and yellow tomato made all red F1 progeny. From the F2 progeny of 400 plants, 90 were yellow. Hypothesize that a single pair of allele is involved such that Y- = Red and yy = Yellow. Test this hypothesis using Chi squ..
Rotifer females will often produce clones of themselves when environmental conditions are good. Which of the following best describes this reproductive strategy.
Wild-type fruit flies have brick-red eyes. A pure-breeding strain of wild-type flies was crossed with a pure-breeding strain with white eyes.
A geneticist crosses a pure breeding strain of peas producing yellow, wrinkled seeds with one that is pure breeding for green, smooth seeds.
The dye used in the Simmons Citrate Agar is called bromthymol blue. It is green at neutral pH and turns blue as alkalinity increases.
What factors contribute to membrane fluidity? List each and discuss the impact on fluidity of altering conditions on that factor in the membrane.
You have T cells that can respond to antigen A. Your spouse does not have T cells that respond to antigen A, so you offer to transfuse some of your T cells to your spouse. Why wouldn't it work? Be very specific.
The mean value of a trait is 250 units and the h2 for the trait is .50. A male and female measuring 240 and 280 units respectively are selected for breeding and they produce several offspring. Find expected value for the trait among their offspring.
Suppose that several years ago you mapped two genes: A and B. You discovered that they were 12 map units apart. Since that time other analyzers have mapped several other genes
DIagram a chain of two RNA nucleotides. Use R for the nitrogenous bases. Then, briefly describe why RNA is usually single-stranded and why it is less stable than DNA.
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