11. A change in one base of an amino acid sequence may produce a change, called
(A) A Tetrad
(B) A zygote
(C) A point mutation
(D) Independent assortment
Answer: (C)
12. The polymorphic enzymes found in human blood may help in
(A) Individualization
(B) Polymorphism
(C) Agglutination
(D) Precipitation
Answer: (A)
13. Semen sample having no sperms is called
(A) Oligospermic
(B) Aspermic
(C) Histospermic
(D) Hematospermic
Answer: (B)
14. An Rh incompatibility between mother and fetus can occur if
(A) Only mother is Rh–
(B) Fetus is Rh+
(C) Pregnancy is second or later
(D) All of the above
Answer: (D)
15. Kerosene is a blend of
(A) Paraffins
(B) Naphthenes
(C) Aromatics
(D) All of the above
Answer: (D)
16. Petroleum products include
(A) LPG and CNG
(B) Aviation spirit
(C) Kerosene
(D) All of the above
Answer: (D)
17. Which of the following is used to colour motor gasoline?
(A) Phenyl azo-2-napthol
(B) Eosine
(C) Di-alkyl amino anthraquinone
(D) Erythrosine
Answer: (A)
18. Blood Alcohol Concentration (BAC) is measured in
(A) Weight/Volume percent
(B) Volume/Volume percent
(C) Weight/Weight percent
(D) All of the above
Answer: (A)
19. Heroin is easily differentiated from its cutting agents by
(A) Colour/spot test
(B) Thin Layer Chromatography
(C) UV-Vis spectrophotometry
(D) IR spectrophotometry
Answer: (B)
20. Assertion (A): Free sulphuric acid is rarely found in stomach contents in acid poisoning case.
Reason (R): Because either it is vomited out or neutralized by alkalies given as antidotes.
Codes:
(A) Both (A) and (R) are incorrect.
(B) (A) is correct, but (R) is incorrect.
(C) Both (A) and (R) are correct.
(D) (A) is incorrect, but (R) is correct.
