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Question: Discuss the 2 main classes of T cells and explain how are they distinguished from each other (e.g. What cellular markers cam be used to tell them apart)? What are their most important functions? how are they activated?
Genes A , B , and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 10 percent.
Explain the advantages of Nitrogen fixing plants to the humans and its role within the ecosystem in detail. Browse the Internet and select a way (other than giving the oxygen) that plants are useful to the humans.
Assume you hypothesize that an animal with a mutation that affects conversion of the b form of glycogen synthase to the a form could not produce glycogen at functional levels.
Early in development, most human cells turn off expression of an essential component of telomerase, the enzyme responsible for addition of telomere repeat sequences to the ends of chromosomes.
When an experiment is repeated with a protein medium, yeasts grow only in the presence of oxygen. Pasteur concluded that the yeasts can take oxygen from air, and in the absence of air, the yeasts take oxygen from sugar.
Tina administered 1 liter of sterile distilled water IV to a patient. Predict the direction you would expect Tina's infusion to have produced in these parameters, and describeyour predictions.
The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole o ATP. What is the approximate efficiency of cellular respiration for a "mutant" organism that produces only 29 mole of ATP for every mole of glucose oxidized, rather than ..
Suppose that some sort of natural disaster eliminated all individuals with recessive phenotype. After remaining individuals recovered and repopulated their habitat,
A two year old boy is being seen through a hematologist. The child's symptoms include the sudden onset of high fevers, thrombocytopenia, epistaxis.
A 5.0 mL aliquot of a stock tryptophan solution was diluted by adding 95 mL of water. The absorbance of that diluted solution was measured at 280 nm as 0.055 absorbance units.
An experimental population is started with a recessive deleterious allele (m) at a high frequency (p). The wild type homozygote (+/+) and heterozygote (+/m) have equal fitnesses.
define which glucose is transported across a cell membrane. I could also really use help with finding online references on similar topics.
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