Kerala PSC Previous Years Question Paper & Answer

Title : Microbiologist - Food Safety (Govt. Analytical Laboratory)
Question Code : A


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Microbiologist - Food Safety (Govt. Analytical Laboratory) ' And exam conducted in the year 2022. And Question paper code was '27/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 6 out of 16
Excerpt of Question Code: 27/2022







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
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

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