Kerala PSC Previous Years Question Paper & Answer
Page:5
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Biologist' And exam conducted in the year 2023. And Question paper code was '106/2023/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.
C:-5
D:-8
Correct Answer:- Option-B
Question22:-Colorimetry is based on which law
A:-Coulomb's law
B:-Beer-Lambert's law
C:-Snells law
D:-None of the above
Correct Answer:- Option-B
Question23:-Which among the following statements are true
(i) Habituation causes increased response to stimulus due to repeated exposure
(ii) The recovery of response upon the application of a new stimulus is called
dishabituation
(iii) Sensitisation causes increase in probability of a response due to repeated
exposure toa
biologically significant stimulus
A:-Statement (i) and (ii) is true
B:-Statement (ii) and (iii) is true
C:-Statement (i) and (iii) is true
D:-All Statements are true
Correct Answer:- Option-B
Question24:-Implicit memory is also called
A:-Declarative memory
B:-Non declarative memory
C:-Recognition memory
D:-Non Recognition memory
Correct Answer:- Option-B
Question25:-Consider a single lous with two alleles, which are at Hardy Weinberg
equilibrium. If frequency of one of the homozygous genotype is 0.81. What is the
frequency of heterozygote
A:-0.18
B:-0.20
C:-0.32
D:-0.36
Correct Answer:- Option-A
Question26:-Directional selection causes
A:-Selection of non average or extreme phenotypes
B:-Selection of average phenotypes