027/22

17.

18.

19.

20.

21.

are strong exchangers, as they are totally ionized at all normal working pH
values which are often used in the ion exchange chromatography.
A) Sulphonate and quaternary ammonium B) Carboxylate and diethylammonium

C) Sulphonate and diethylammonium D) Carboxylate and quaternary ammonium

Match the substance and the reagent used in Colorimetric and UV absorption assays.
Substance Reagent

i. Amino acids a. Diphenylamine

ii. Cysteine b. Bial

ர்‌. Protein c. Ellman reagent

iv. DNA 0. Ninhydrin

v. RNA e. Coomassie blue

A) i-b, 4-௦, iii-d, ४-७, ४-७

8) i-d, ii-c, 4-6, ४-७, ४-०

C)i-c, 1-0, iii-e, ४-४०, ४-७

0) 1-6, ॥1-ഠ, 4-0, ४-४०, ४-७

Match the following and choose the best answer given below.
Spectroscopic technique Application

i. NMR a. Study metallo proteins
॥. EPR b. Imaging of live samples
॥. SPR c. Identification of sample constituents
iv. Infrared spectroscopy d. Assess particle size
v. Fluorescence spectroscopy e. Study the kinetics of antigen antibody interaction
A) i-e, ii-b, iii-c, ४-७, v-a
8) i-b, ii-c, iii-d, ४-७, ४-७
C)i-c, 1-0, iii-e, ४-७, ४-०
0) i-b, 13 ४-०, ४-७
15018101 of eukaryotic mRNA from a mixture of total cellular RNA is carried out by
technique.
A) Affinity chromatography B) Paper chromatography
C) Thin layer chromatography D) Immuno blotting technique

Which of the following statements is/are correct relating to passive immunity ?
i. Preformed antibodies are administered.

ii. There is no latent period.

iii. It involves the active functioning of the immune system.

iv. Immunity is long lasting.

A) iand ii B) ii and iii

©) iiiandiv D) Only iv