ICMR Paper

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1. Molality is defined as:
1. Number of moles of solute/L of solvent
2. Grams of solute/L of solvent
3. Number of moles of solute/Kg of solvent
4. Number of Grams equivalent of solute/L of solvent

2. An ‘inbred’ strain of an animal refers to:
1. Genetically undefined animal
2. Animals bred in a laboratory
3. Isogenic animals
4. Immunodeficient animals

3. The limits of Pearson’s Correlation coefficient are:
1. 0 ≤ Y ≤ 1
2. -1 ≤ Y ≤ 0
3. -1 ≤ Y ≤ +1
4. 0 < Y < 1

4. Which of the following tests will be used for testing of mean between two groups?
1. Students unpaired ‘t’ test
2. Students paired ‘t’ test
3. ANOVA
4. Chi square test

5. When p < 0.05, which of the following is true?
1. Probability of type I error is less than 0.05
2. Probability of type II error is less than 0.05
3. Probability of type I error is more than 0.05
4. Probability of type II error is more than 0.05

6. Aspirin was first obtained from the bark of:
1. Cinchona tree
2. Neem tree
3. Willow tree
4. Eucalyptus tree

7. An isotope of an element has:
1. Same number of neutrons
2. Same number of electrons and neutrons
3. Same number of protons and neutrons
4. Same number of protons

8. The branch of science that deals with cancer is known as:
1. Serology
2. Oncology
3. Pathology
4. Radiology

9. Which of the following waves cannot be transmitted through vacuum:
1. Light waves
2. Heat waves
3. Sound waves
4. Electromagnetic waves

10. Luc Montagnier and Robert Gallo are the codiscoverers of the following virus:
1. Ebola
2. Hepatitis-B
3. Small Pox
4. HIV

11. Which of the followings is rich in triglycerides?
1. Chylomicrons
2. LDL
3. VLDL
4. HDL

12. Which enzyme has impaired activity in Vitamin B1deficiency?
1. Succinate dehydrogenase
2. Pyruvate dehydrogenase
3. Transketolase
4. Citrate synthase

13. Which of the following is useful for identifying amino terminal residue of proteins?
1. Cyanogen bromide
2. Fluorodinitrobenzene
3. Performic acid
4. Dansyl chloride

14. Which is the most abundant RNA in a cell?
1. tRNA
2. mRNA
3. rRNA
4. SnRNA

15. Which of the following statements concerning characteristics of histones is FALSE?
1. They are highly basic proteins found in the nucleus
2. They form non-covalent bonds with eukaryotic
DNA called nucleosomes
3. They are very highly conserved proteins
4. They are associated with both prokaryotic and eukaryotic DNA

16. Which of the following is an inhibitor of protein synthesis?
1. Pencillin
2. Chloramphenicol
3. Actinomycin D
4. Bacitracin

17. The Ames test is used to:
1. To detect bacteria
2. To detect viruses
3. To detect enzymes
4. To detect mutagens

18. In which of the following tissues insulin enhances transport of glucose?
1. Brain
2. Lens
3. Red blood cell
4. Adipose tissue

19. Which class of RNA characteristically contains methylated purines and pyrimidines?
1. tRNA
2. mRNA
3. rRNA
4. 16sRNA

20. Km of any enzymatic reaction describes:
1. Reaction velocity expressed as mols per second
2. Dissociation constant of E-S complex
3. Amount of the enzyme required to convert half of the substrate to E-S complex
4. Substrate concentration to achieve half of Vmax

21. A Codon consists of:
1. One molecule of amino acyl-t RNa
2. Two complementary base pairs
3. Three consecutive nucleotide units
4. Three individual nucleotides

22. One mmol of NaCI contains:
1. 35.5 g
2. 35.5 mg
3. 58.5 g
4. 58.5 mg

23. Piezoelectric crystals are used in:
1. NMR imaging
2. Crystallography
3. Ultrasonography
4. Xeroradiography

24. Nuclear Magnetic Resonance Imaging technique is based on the gyromagnetic property of:
1. Neutron
2. Electron
3. Proton
4. Positron

25. Hydrogen-3 is a pure:
1. Alpha emitter
2. Gamma emitter
3. Beta emitter
4. Positron emitter

26. When a positron is emitted from a radioisotopic atom, the atomic number of the daughter product:
1. Increases by one
2. Decreases by one
3. Decreases by two
4. No change

27. The sedimentation velocity of a protein in a centrifuge tube does NOT depend on the:
1. Density of the solution
2. Density of protein
3. Mass of protein
4. Charge of the protein

28. Which law states that: At constant temperature, the volume of a given quantity of any gas is inversely proportional to the pressure upon the gas?
1. Boyle’s law
2. Charle’s law
3. Henry’s law
4. Dalton’s law

29. Western blot is a technique used for:
1. Protein expression
2. DNA expression
3. RNA expression
4. Fat expression

30. When a molecule absorbs light of a particular wavelength and continues to emit light of higher wavelength for a considerable time after excitation,the phenomenon is called:
1. Phosphorescence
2. Fluorescence
3. Chemiluminescence
4. Cerenkov radiations