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1-What is the purpose of the selectable marker on a vector plasmid? Give an example of how a selectable marker is used.
2-How do you think PCR could be used to determine if a public water supply is contaminated with a hazardous bacteria? What would be necessary to do this analysis?
Some evolutionary biologists have argued that the neutral theory should be taken as the null hypothesis to explain genetic variation within species or populations and genetic differences among them.
Osmometer cells in the brain sense an increase in concentration of the blood plasma. They then notify the posterior pituitary gland to release the hormone, ADH. This hormone causes the kidney to save water that lowers the concentration of the plasma.
Which of the subsequent statements is true about phylogeny. The ancestral group frequently has all the synapomorphies of the descendant species.W hat phenotypes would be seen in the f2 and in what proportion.
What is a good Hypothesis for What's my problem? Is it ADD or is it ADT?
Lakes would suffer a nutrient depletion in surface layers. Evaluate the sizes of the different digestive organs in the earthworm. Which organ is the main? How does its size make it well suited for its function.
Voltage dependent channels open through opening a gate that is a voltage sensor. Determine the names of these gates required for opening Na and K channels?
Discuss how is cancer different from most other types of genetic diseases? Outline Knudson's multistage theory of cancer and explain how it helps to unilateral and bilateral cases of retinoblastoma.
If a solution surrounding a cell is hypotonic relative to the inside of the cell, how will water move?
What is the cellular/molecular mechanism to make yeast chemically competent? Compare and contrast the molecular mechanisms of yeast and bacterial transformations.
Several black guinea pigs of the same genotype were mated and they produced 29 black and 9 white offspring. What would you predict the genotypes of the parents to be?
Assume you are performing a reverse transcription reactions for high-throughput analysis using a 96-well plate format. Each 96-well plate is eight horizontal rows of wells by 12 vertical columns of wells.
A. Design a repressor to bind to the operon of this gene. B. Use a histone deacetylase to induce a transcriptionally inactive state. C. Use a C. elegans strain with a homozygous TFIID mutation to prevent the translation initiation complex from for..
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