A 7-year-old boy is evaluated for short stature. His average circulating growth hormone level is within the normal range for his age, but levels of IGF-I are reduced. His growth failure is most likely due to a defect in:

#Question id: 740

#Unit 1. Structure and Function of Biomolecules

The conformation of the backbone of a polypeptide is described completely by the angle(s) of rotation about which bond(s)?

#Question id: 741

#Unit 1. Structure and Function of Biomolecules

Which of following statements are INCORRECT about secondary structure of proteins

A. Long block of Glu residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation below its pKR value

B. Long block of Lys residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation above its pKR value

C. Long block of Ala residues segment of the chain will not form an alpha helix at pH 7.0 but it ll take helical confirmation below its pKR value

D. Histidine side chain remain uncharged over pH range 3-6

#Question id: 742

#Unit 1. Structure and Function of Biomolecules

Match the following

#Question id: 743

#Unit 1. Structure and Function of Biomolecules

Glycophorin, an integral membrane protein, has a single transmembrane alpha helix. Which of the following idealized hydropathy plots most likely represents the transmembrane nature of glycophorin?

#Question id: 27081

#Unit 1. Structure and Function of Biomolecules

#Question id: 27082

#Unit 1. Structure and Function of Biomolecules

Choose the incorrect statement regarding β -turns