Which of the following polypeptides is most likely to form an α-helix explain your answer.(a) CRAGNRKIVLETY (b) SEDNFGAPKSILW (c) QKASVEMAVRNSG

(c) QKASVEMAVRNSG

Explanation:

The alpha helix is a protein arrangement tightly packed, thereby the peptide will form a rod. The option (c) is expected to form an alpha helix because it contains three amino acids charged which are aligned on the face of the helix, 1-two residues positively charged: Lysine (K) and Arginine (R), and 2-one residue negatively charged: Glutamic Acid (E).

this protocol provides a detailed procedure for chromatin immunoprecipitation (chip) to study the dna-protein interactions.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.