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1. How does gel electrophoresis sort DNA fragments?
2. If each individual has such a small amount of DNA, how do the bands on the gel contain enough DNA to be visible?
3. Many genes only have a few possible alleles. For example, humans only have a few eye colors and only four blood types. How can DNA tests definitively identify individuals when many men have brown eyes or type A blood?
What is the metabolic exchange between rhizobia and their plant hosts? What does the plant provide in addition to carbon and how does leghemoglobin play a role in this? What metabolic feature of the bacterium is useful to the plant.
Fluorescence in situ hybridization (FISH) is a technique wherechromosomes on a slide can be denatured, allowing single-strandedDNA probes labelled with a fluorescent dye to anneal to genomicDNA.
In humans, blood types A and B are codominant with type O being recessive. List the blood types of the offspring of a father with blood type AB and a mother with type O.
Why would reading something for a long time cause eye fatigue, while looking at something distant is restful?
describe the journey of a hypothetical enveloped - rna virus through three basic host barriers to infection physical b
Discuss how the unique physical and chemical properties of water contribute to the importance of water for life on Earth to survive. Explain the role so called "accidental" discoveries played in the history of science.
How many generations will it take for the culture to contain more than 30,000 cells/ml? How long, in hours, will it be before the culture contains more than 30,000 cells/ml? Show your calculations.
q. chooses the statement that best describes a buffer.1. a buffer resists change in ph by accepting hydrogen ions when
Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills. Describe two traits that represent a sustainable society and two traits of a non-sustainable society.
The function of the systemic circuit is to transport A) carbon dioxide and nutrients to the lungs only
Suppose you had poured iodine on your plate and noticed clearings in the uninoculated area, as well as around both of your transferred cultures. What are some possible explanations for this occurrence? Was integrity of this exercise compromised? W..
A cross between a certain blue F2 plant and a certain white F2 plant gave progeny of which 3/8 were blue, 1/8 were pink, and 1/2 were white. What must the genotypes of these two F2 plants have been?
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