Hybridoma Technology ( Production , Purification , and Application )
Entry level test
1. DEPARTMENT OF BIOCHEMISTRY – ENTRY LEVEL TEST- 2017
1. DNA double helicalstructure was proposedby:
a. Watsonand Wilkin b. Watsonand Crick
c. Watsonand Franklin d. Watsonand Pauling
2. The diameter of the double helix of DNA is
a. 1 nm b.2nm c.10 Amstrong d.21 Amstrong
3. Which is a linear polysaccharide?
a. glycogen b. starch c. cellulose d. amylose
4. Which one does not belong to the group?
a. nucleic acid b. lipid c. monosaccharide d. protein
5. NH2CH2COOHrepresents which major macromolecule?
a. protein b. carbohydrate c. lipid d. nucleic acid
6. Fatty acids that are unsaturated have:
a. an amino group b. a double bond c. an excess ofprotons d. a single bond
7. The cohesionof wateris causedby :
a. ionic bonds b. hydrophobic bonds c. hydrogen bonds d covalentbonds
8. Plasma membrane is made of proteins and
a. starch b. lipids c. DNA d. cholestrol
9. Transcriptionis the process of
a. DNA to proteins b. DNA to RNA c. DNA to DNA d. RNA to proteins
10. -------------------- is the basis of genetic material
a. DNA b. nucleic acids c. proteins d.RNA
11. Enzymes are made of:
a. carbohydrates b. vitamins c. amino acids d. lipids
12. Elements which have the same number of protons but different number of
neutrons are knownas:
a. isotopes b. electrons c. isomers d. isotones
13. Bonds betweenatoms in which electrons are mutually sharedby both
atoms are called:
a. ionic bond b. hydrogen bond c. covalentbond d. Vander Waal’s force
2. 14. Which of the following is not found in lipids?
a. Oxygen b. Phosphorus c. Potassium d. Hydrogen
15. An enzyme ------------- the activation energy for a chemicalreaction.
a. increases b. stabilizes c. decreases d. eliminates
16. Polysaccharides andproteins are made of ---------and ----------- respectively
a. sugars , amino acids b. amino acids, sugars
c. nucleic acids, amino acids d. oxygen, hydrogen
17. The most abundant monosaccharide is
a. lactose b. fructose c. glucose d. galactose
18. Which of the following is used in PET scans?
a. uranium b. isotopes c. ions d. steroids
19. Which of the following is least abundant in living organisms?
a. oxygen b. phosphorus c. nitrogen d. sodium
20. An organic compound contains:
a. carbon b. long chains c. acidic nature d. soluble nature with water
