Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'SCIENTIFIC OFFICER (BIOLOGY) -KERALA POLICE SERVICE (FORENSIC SCIENCE LABORATORY)' And exam conducted in the year 2021. And Question paper code was '018/2021'. 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.
The S wave of normal human ECG originates due to the
(A) Left to right septal depolarization
(8) Reprolanzation of atrium
(C) Septal and left ventricular depolarization
(D) Late depolarization of the ventricular walls moving back toward the AV
Two siblings who inherit 50% of the genome from the mother and 50% from the father
show lots of phenotypic differences. Which one of the following events during
gametogenesis of the parents will maximally contribute to this difference ?
(A) Mutation (B) Independent assortment
(C) Recombination (D) Environment
Nick translation is done by
(A) DNA polymerase I (B) Kinase
(C) DNA ligase (D) DNA polymerase II
The philadelphia chromosome
(4) An example of gene amplification
(8) A product of a reciprocal translocation
(C) Causes retinoblastoma
(D) Causes Burkitt’s lymphoma
Which of the following is true regarding Anthrax ?
(ಹಿ) Anthrax is highly contagious
(B) Anthrax is caused by a virus
(C) Inhalation anthrax requires infection with a large number of spores
(D) Inhalation anthrax and cutaneous anthrax are caused by separate strains of
Capacilation of sperms in humans
(ಹಿ) Takes place in the ampulla of the oviduct
(B) Occurs during copulation
(C) Occurs after the acrosome reaction
(D) Takes place in the epididymis of testis
Which one of the following technique is generally used to produce transgenic animals ?
(A) Entire foreign nucleus is introduced in exnucleated unfertilized egg.
(B) Desired DNA is microinjected into fertilized eggs followed by implantation
of embryo in a foster mother
(C) Processed mRNA containing only exones are introduced into blastocyst stage
(D) cDNA of desired gene is introduced into animal embryos and implanted in a
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