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1. Explain why restriction enzyme and gel electrophoresis are valuable tools in the molecular biology lab.
2. What factors (aside from size) could influence the migration speed of dna fragments in gel electrophresis?
3. The respiratory centers that control ventilation of the lungs in mammals are located in the what?
4. Under what conditions would you use a 2% agarose gel, rather than one that is 0.8%?
Is it possible for one kind of neurotransmitter molecule to have an excitatory effect at one cell, and an inhibitory effect at another? Explain using an example.
robert bazell chief science correspondent for nbc news 2010 stated that the maimonides medical center in brooklyn new
Explain what DNA-bar coding is and how it is used to study the epidemiology of viral diseases caused by insect vector-virus complexes; what can be learned using this approach?
What is the function of ribosomes in the rough ER.
A dominant allele, B, Causes blaze, a white forelock of hair in humans. The recessive allele fr albinism, a, prevents the formation of melanin in any part of the body, so the hair is white all over.
The wider orrcurence of glycolysis in nearly all organisms, both aerboic and anaerobic, indicates that it is one of the most ancient metabolic pathways.
Adenine makes up 38% of the nucleotides in a sample of DNA from an organism. What percentage of the nucleotides in this sample will be thymine
Why is the gene coding for ribosomal RNA (rRNA) used for establish phylogenetic relationships and how does this compare to previous methods for placing organisms in appropriate taxa.
Consider two organisms: a frog swimming in freshwater lake, and asalmon swimming in the Pacific Ocean. For each of the seorganisms:
The value of DNA per cell of particular species is measured in cells found at various stages of meiosis and the cell cycle, and the amounts are obtained.
An eight cell frog embryo can be separated into its individual cells and those cells placed in incubators with all the necessities for development.
q1. does more blood flow through coronary arteries throughout ventricular diastole or ventricular systole? explain your
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