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Three Questions: The uniform arrangement of the backbone carbonyl oxygens and amide nitrogens in an α helix gives the helix a net dipole, so that it carries a partial positive charge at the amino end and a partial negative charge at the carboxyl end. Where would you expect the ends of α helices to be located in α protein? Why?
Comparison of a homeodomain protein from yeast and Drosophila shows that only 17 of 60 amino acids are identical. How is it possible for a protein to change over 70% of its amino acids and still fold in the same way? Can you mention one example?
In 1968 Cyrus Levinthal pointed out a complication in protein folding that is widely known as the Levinthal paradox. He argued that because there are astronomical numbers of conformations open to a protein in the denatured state, it would take a very long time for a protein to search through all the possibilities to find the correct one, even if it tested each possible conformation exceedingly rapidly. Yet denatured proteins typically take less than a second to fold inside the cell or in the test tube. How do you suppose that proteins manage to fold so quickly?
Explain your thoughts aout the following statement: Humans rely on other organisms for survival; however, other organisms do not need humans for survival.
If the enteric nervous system can orchestrate motility and secretion on its own, why are parasympathetic connection (espciallythrough the vagus nerve) important?
what is the bacteriologic standard for potable water? why is bacteriologic analysis of water directed at recognition
q. in humans a dimple in chin is a dominant characteristic.1. a man who does not have a chin dimple has children with a
A drug swallowed as a pill or capsule may not make it into the general circulation in sufficient amounts to be effective. Explain different mechanisms that may account for this observation. Why might a drug delivered by a skin patch or nasal spray..
How are cones and flowers alike?how are dey different
Discuss CBT and Mindfulness based cognitive therapy
Assume you are a male. Your father was a hemophiliac and your mother had normal blood clotting and was not a carrier for thehemophilia trait. What does this make your genotype for this trait?
What would happen to urine output of a rabbit if cells of tunica media of all glomerular afferent arterioles were totally inactivated?
What everyday tasks do you think would become more challenging if Homo sapiens were full- time quadrupeds in the place of full-time bipeds? Explain the answers in details.
Discuss the difference between transformation and electroporationwhen? when do we use transformation and when do we use electroporation?
What is signal transduction? and why are secondary messengers involved in signal transduction? For what added function do they serve?
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