Kerala PSC Previous Years Question Paper & Answer
Page:11
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Scientific Officer Biology (SR for SC/ST and ST only)' And exam conducted in the year 2022. And Question paper code was '094/2022/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.
Correct Answer: Option-C
‘Question82:
B:-Chromosome
C-Central spindle
D:-Pre-prophase band
Correct Answer: Option-C
‘Question83:-Which protein secreted by the amphibian organizer induces neural tissue formation by inhibiting bone morphogenetic protein?
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B:-Noggin
ഥല്
D:-Dishevelled
Correct Answer: Option ®
‘Question84:-Cladistic classification is based on
‘Ac-sequential order in which branches arise from a phylogenetic tree
நம் order of sequence of divergence
C-morphological features and skeleton of individuals
D:-cellular organization and cytoskeleton
Correct Answer: Option:
‘Question85:-Microbial leaching involves the process of dissolution of metals from ore breaking rocks using microorganisms. Which one of the following bacteria helps in leaching
copper from its ore?
‘AcAcidithiobacillus ferroxidans
B:-Pseudomonas putida
C=Deinococcus radiodurans
D:-Rhodopseudomonas capsulate
Correct Answer:- Option-é
Question86::Which of the following atomic nuclei cannot be probed by nuclear magnetic resonance spectroscopy?
கடி
8-31,
பெடி
Dey
Correct Answer:- Option-C
‘Question87:-In the case of monoclonal antibody production by hybridoma technology, myeloma cells used lack the enzyme ‘hypoxanthine-guanine phosphoriboxyl transferase (HGPRT)
such that fused cells can only survive when selected on hypoxanthine-aminopterin-thymidine (HAT). What is the role of aminopterin in this medium?
கோ be used as cell cycle inhibitor of myeloma cells
B:To block the pathway for nucleotide synthesis
ಆ ರ fusion of myeloid B cells and antibody producing B cells,
Dy facilitate production of antibody producing B cells,
Correct Answer:- Option ®
Question88:-DiGeorge syndrome is caused by
‘A-11p22 deletion
B:-22p11 deletion
C1142 deletion
D-22q11 deletion
Correct Answer:- Option-D
‘Question89:-Michaelis and Menten derived their equation using which ofthe following assumption?
‘Ac Rate limiting step in the reaction is the breakdown of ES complex to product and free enzyme
B:-Rate limiting step in the reaction is the formation of ES complex
CConcentration of the substrate can be ignored
D:-Non-enzymatic degradation of the substrate is the major step