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All of the following are correct about a α-helix except:A. a right-handed α-helix is more stable than a left-handedone.B.side chains are not considered at the...

Question

All of the following are correct about a α-helix except:A. a right-handed α-helix is more stable than a left-handedone.B.side chains are not considered at the level of α-helix.C.there is 3.6 amino acids per turn.D.the side chains are on the outside of the spiralstructure.E.It includes the conformational relationships in space of theside chains and the geometric relationship between distant regionsof the polypeptide

All of the following are correct about a α-helix except: A. a right-handed α-helix is more stable than a left-handed one. B.side chains are not considered at the level of α-helix. C.there is 3.6 amino acids per turn. D.the side chains are on the outside of the spiral structure. E.It includes the conformational relationships in space of the side chains and the geometric relationship between distant regions of the polypeptide



Answers

Consider the following statements concerning proteins: (1) All natural amino acids which are constituents of proteins are $\alpha$ -amino acids. (2) $\alpha$ -amino acids are all optically active and have the L-configuration. (3) An especially favourable conformation for the peptide linkage in proteins is the $\alpha$ -helix arrangement. (4) $\alpha$ -amino acids are connected by ester link- ages. Which of the following statements are correct? (a) 1 and 3 are correct (b) 1 and 2 are correct (c) 2 and 3 are correct $\quad$ (d) 2 , 3 and 4 are correct

This question. Which of these amino acids has a side chain that can become ionized in cells yesterday? I'm Lucy, probably or three. So we know that certain immune masses have this ionized poolside shape right from our instruments that are given Onley history. I'm hasn't ionized well snatching and in history line, we find that it has what is known as and in it is old ring. And this the middle ring has a nation item mention in Adam that can be pro donated so we can add way, say, pro donated. We can add an age plus to that majored in Adam. So off those ants choices on Lee, his Stein has an ionized, well side chain. It is the only, um, amino acid with a side chain that can be pro donated from those answer choices. So that is my choice. A will be the correct answer here

Uh, amino acid loosen is found in all proteins. That's not true. Cannot form peptide. Linkage is well, if you can't form peppered linkages and that means they can't really be part of the primary structure, which means it's not going to be found in any protein. So and we're both wrong. Um, and it is not identical to the amino acid lysine either. So it means that either has a hydro filic or a hydrophobic site train. So this you kind of just have to remember, but glassine a lantern in valley and loosen off. These actually all have hydrophobic side chains. So the correct answer is C Thank you for watching, and I hope this helped.

This question asked which of these amino acids has a Cairo carbon in its side chain Syrian through any isil? Lucy. And then we have our instructions, which are going to be a combination of those three selections. So every amino acid that we know of will have a Tyrell powerful carbon. Okay, except for Bill. I see. So we should just write this out here? Um well, say every amino acid minus. Actually, that doesn't look exactly correct. Let's just right out. Every amino acid, except for is that for glassine is going to have a Cairo powerful carbon. However, on Li, two of the 20 Onley, the two of the 20 so three any and I saw Lucy will have an additional Cairo carbon in their side jeans. So looking at our answer choices choice, see which states that three inning and I saw Lucy have a Cairo carbon in its side chain will be the correct answer choice here

In this problem, the only true statement here age the third base the heard, the base of the Coumadin. It less specific. Each place is specific, while all the other three statements which are given in this problem are incorrect or false. Therefore, Option A option C, option B. R. The answers according to the problem. I hope you understand the solution of this problem.


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