A yellow tetrazole is reduced by metabolically active cells to form insoluble, purple formazan dye crystals detected at 570nm. For this phenomenon which of the following compound should be uptake by cell

#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: 744

#Unit 1. Structure and Function of Biomolecules

In a DNA molecule, deoxyribonucleotides are joined into a polymer by the covalent linkage of a phosphate group. The covalent link termed as:

#Question id: 745

#Unit 1. Structure and Function of Biomolecules

The structure of RNA differs from that of DNA, as RNA contains:

#Question id: 746

#Unit 1. Structure and Function of Biomolecules

Two separate chains of DNA are wound around each other, each following a helical (coiling) path, resulting in: