1. In capillary electrophoresis, which flow causes the movement of electrolyte through the tube?
(A) Micro-osmatic flow(B) Electro-osmatic flow
(C) Macro-osmatic flow
(D) None of the above
Answer: (A)
2. Assertion (A): A phenolphthalein solution is used to show the possible presence of blood.
Reason (R): As there is non-specific peroxidase reaction with haemoglobin producing pink colour.
Codes:
(A) (R) is correct, but (A) is incorrect.
(B) (R) is incorrect, but (A) is correct.
(C) Both (A) and (R) are correct.
(D) Both (A) and (R) are incorrect.
Answer: (C)
3. 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)
4. The polymorphic enzymes found in human blood may help in
(A) Individualization
(B) Polymorphism
(C) Agglutination
(D) Precipitation
Answer: (A)
5. Semen sample having no sperms is called
(A) Oligospermic
(B) Aspermic
(C) Histospermic
(D) Hematospermic
Answer: (B)
6. 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)
7. Kerosene is a blend of
(A) Paraffins
(B) Naphthenes
(C) Aromatics
(D) All of the above
Answer: (D)
8. Petroleum products include
(A) LPG and CNG
(B) Aviation spirit
(C) Kerosene
(D) All of the above
Answer: (D)
9. 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)
10. 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)
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