Kerala PSC Previous Years Question Paper & Answer

Title : Research Officer- Chemistry/ Biochemistry
Question Code :

Page:7


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Research Officer- Chemistry/ Biochemistry' And exam conducted in the year 2023. And Question paper code was '027/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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: 7 out of 23
Excerpt of Question Code: 027/2023/OL

D:-n/A = 2dSin(1/8)
Correct Answer:- Option-C
Question30:-Pick out the right statement regarding MALDI-TOF MS.
A:-MALDI produces abundant amounts of fragmentation
B:-TOF is used to ionize the sample
C:-UV-light absorbing matix is used
D:-MALDI is the mass analyser
Correct Answer:-Question Cancelled

Question31:-Mammalian cells use several cdks and cyclins to regulate passage
through the cell cycle. Match the correct combinations which regulate the different
phases of the cell cycle.

Cdks Cyclins Cell cycle phases
1. Cdk1 a. Cycline A i. G1 phase
2. Cdk2 b. Cycline B ii. S phase
3. Cdk4 c. Cycline D iii. G2 phase
iv. Mphase

A:-3.Cdk4 c.CyclineD |. Gl phase

2.002 a.CyclineA_ ii. S phase
1. 0൨ b.CyclineA iii. G2 phase
1. 0൨ a.CyclineB iv. M phase
B:-1.Cdk1 a.CyclineA i. Gl phase
2.002 b.CyclineB_ ii. S phase
3.Cdk4 c.CyclineD _ iii. G2 phase
1. 481 b.CyclineB iv. Mphase
(:-2. (५॥<2 0. (५८४7९ 8 1. 61 1356
1. (५।<1 . ೦೮. (५८४0९ 0 1. 5 01356
3.004 a.CyclineA 1. 62 0೧೩5೮
2.002 c.CyclineD ۱۷ ५ [01358
0:-3. (५2 6. (४५1€ 8 i. Gl phase
1. 0൨ b.CyclineD ‏.ا‎ 5 phase
2. (५८4 a.CyclineA iii. G2 phase
3.002 a.CyclineD iv.M phase
Correct Answer:- Option-A
Question32:-The following are the molecular cancer biomarkers used to diagnose

cancer in the human body. Find the correct combination of markers used to identify
the different types of cancer

A. AFP 1. Brest cancer

8. HER-2 ii. Colorectal cancer
७. 06-125 14. Liver cancer

D. CEA iv. Ovarian cancer

A:-A-iv, B-ii, C-i, D-iii
B:-A-ii, B-iii, C-iv, D-i
C:-A-iii, B-i, C-iv, D-ii

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