www.kashmiruniversity.net Entrance Exam Question Paper Biological Science : University of Kashmir

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Type of Announcement : Entrance Exam Question Paper Biological Science
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Bio Technology

1. According tc coulomb's law the solubility of a solute increases when
(A) Dielectric constant of the solvent is increased
(B) Dielectic constant of the solvent is decreased
(C) Chargeof the ions is increased
(D) .Both B and C

2. Proton in aqueous solution Mainly exists as
(A) Hydride ion
(B) Hydronium ion
(C) Proton
(D) All of the above

3. Isoelectric point is a point at which
(A). Net charge ofa protein is maximum
(B) Net charge of a protein is zero
(C) Net charge of a protein is positive
(D) Net charge of a protein is negative

4. Which of the following technique is NOT used for protein separation?
(A) Isoelectic focusing
(B) Gel-exclusion chromatography
(C) Denaturating polyacrylamid gel electrophoresis
(D) Southem blotting

5. Which of the following is inversely related witht the electophoretic mobility of ion in a medium?
(A) Charge on ion
(B) Electic force
(C) Viscosity of medium
(D) All of the above

6. Ultracentrification is used for
(A) Protein separation
(B) Nucleic acid scparation
(C) Protein molecular weight determination
(D) All ofthe above

7. Partial double bond character of peptide bond is because of the following reason
(A) Its carbon is bonded to electronegative atom and the nitrogen has loan pair of electrons
(B) Its carbon is bonded to carbon side chain
(C) Its nitrogen is bonded to carbon side chain
(D) Both (B) and (C)

8. Glycosidic bond is present in the following
(A) Amino acids
(C) Monosaccharide
(B) Nucleotides
(D) Fatty acids

9. Red colour of blood is becausw of
(A) Globin part of hemoglobin
(B) Heme part of hemoglobin
(C) plasma
(D) Antibodies

10. The determinant of blood groups are
(A) Glycoproteins
(B) Phosphotipid
(C) Nucleic acid
(D) Lipoproreins

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Bio - Chemistry

l. IARI is located in
(A) Delhi
(B) Chandigarh
(C) Lucknow
(D) Bangalore

2. Bolivar and Rodriguez are associated with the construction of Plasmid
(A) pBR322
(B) YAC
(C) pUC108
(D) None ofthe above

3. Lining up of the blastocyst in the wall of the uterus is known as
(A) Fertilization
(B) Impregnation
(C) Implantation
(D) Placentation

4. The rate of cleavage in a zygote depends up on
(A) Amount of yolk
(B) Amount of cytoPlasm
(C) Sizeofnucleus
(D) All the above

5. One of the organelle richest in enzymes is
(A) Lysosomes
(B) Mitochondria
(C) Golgibodies
(D) Endoplasmicrcticulum

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[Unregistered]

Proton in aqueous solution Mainly exists as ?

Answer: Hydronium ion

Protons in aqueous solution almost always exist in hydrated form as hydronium ions, H3O+ (or H3O+.nH2O, including waters of hydration), also called oxonium (605) or hydroxonium ions (1070).