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a)If you have 14 amino acids in a polypeptide chain, how many peptide bonds are there in the polypeptide chain?
b) T/F R groups affect peptide bond formation.
c)What is unique about the peptide bond and how does this characteristic affect the length of the bond?
d)What are the 3 Greek torsion angles and between what atoms are they located?
e)What is the dominant peptide bond conformation and why is this so? What amino acid exhibits the other conformation?
e)If you have 10 different amino acids and want to make a polypeptide chain of 6 amino acids, how many theoretical combinations of amino acids could you make?
f)If the molecular weight of a protein is 2000 Da, how many amino acids are in the protein?
Determine what kind of receptores are norepinephrine, epinephrine and phenylephrine? Are they slective or non-selective, alpha 1 or 2, beta 1 or 2.
Few trees reach the maximum height, but some giant redwoods and sequoias do. Why do trees have an approximate limit of about 350 ft as their maximum height?
Define what a sub-viral agent is and discuss three of the sub-viral agents that need the cell or a so-called "Helper Virus" in order to replicate. (Note: Many times prions are listed as sub-viral agents, but do not use them as part of your definit..
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.
Considering an E. coli promoter that could be recognized by a ?70-containing RNA polymerase holoenzyme, which of the promoter elements are always present, and which can be missing or altered? How does this E. coli promoter compare to a typical euk..
A test tube contains starch, pancreatic amylase, and water. The buriet is negative. After 30 minutes, Benedict's test is positive. What substance is present.
Compare and contrast the structure and function of the circulatory systems in insects and in mammals. Explain why each animal's system works for that animal. Don't ignore gas exchange; it's connected with circulation.
In thick-billed murres, fledglings plunge into the ocean from their hundreds-meters high nesting cliffs. List the reasons for the lack of developmental and genetic variation in allometric proportions of chicks in this species.
You have two flies that have the following traits. The female fly is dominant homozygous for red eyes and she has a rate immune deficiency for which she is recessive homozygous, having one allele on each X-chromosome.
Discuss and explain how do girls and boys differ in bullying behavior? What are some of the emotional consequences of being bullied?
In sheep, coat color is determined by a single, dominant gene. A white ram and a black ewe produce a black lamb. Which color is dominant? 1. white 2. black 3. impossible to determine.
What is the most likely defect associated with the Ser63 deletion mutant. How would you design an experiment to test your hypothesis using culture cells and the expression construct of wild-type and Ser63 deletion mutant of P0.
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