Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. Auxanometer is used for measuring
A. respiratory activity
B. photosynthetic activity
C. growth activity
D. osmotic pressure

2. Human insulin formed by recombinant DNA technology is known as
A. H insulin
B. R insulin
C. humulin
D. huinsulin

3. Electroporation is
A. the process of separating charged molecules through a gel maintained in an electric field
B. the process of combining foreign DNA to an electrically charged vector molecule
C. the application of high voltage pulses
D. the process of multiplication of the cells

4. The yield of the antibiotic depends upon
A. pH of the medium
B. age of the inoculum
C. composition of the medium
D. all of these

5. Recombinant adeno virus can be created by deleting E1A/E 1B genes that are
A. transcriptional regulators and are essential for viral replication
B. not necessary for viral replication
C. coding for virus coat protein
D. important for packaging of viral DNA into viral head

6. Which of the following microorganisms leach metals out of rock ores and can accumulate silver?
A. Pseudomonas aeruginosa
B. Thiobacillus
C. Pseudomonas putida
D. Zoogloea ramigera

7. Retroviruses have advantage for being used as vector for animal cells because
A. they cover a wide host range
B. infection does not lead to cell death, infected cells produce virus over an indefinite period
C. viral gene expression is driven by strong promoters
D. all of the above

8. Starch content of potatoes can be increased by using a bacterial gene, known as
A. sucrose phosphate synthase gene
B. ADP glucose pyrophosphorylase gene
C. polygalactouranase gene
D. none of the above

9. For culturing, plasma from the adult chicken is preferred to mammalian plasma because
A. it forms a clear and solid coagulum even after dilution
B. it is too opaque
C. it doesn't produce solid clots
D. it forms a semi solid coagulum

10. Which of the following is obtained using processed mRNA molecules as a template?
A. rDNA
B. mDNA
C. cDNA
D. tDNA

11. The size of the virulent plasmid of Agrobacterium tumefaciens is
A. 40-80 kb
B. 80-120 kb
C. 140-235 kb
D. >235 kb

12. Hypoxanthine can be measured by
A. hypoxanthine sensor
B. amorphous silicon ISFET
C. urea sensor
D. alcohol sensor

13. Which type of restriction endonuclease cuts the DNA within the recognition site?
A. Type I
B. Type II
C. Type III
D. All of the these

14. The production of high quality and uniform embryos has been limited to only
A. carrot
B. alfalfa
C. both A and B
D. sandalwood

15. The piece of equipment, that introduces DNA into cells via DNA-coated microprojectiles is known as
A. laser
B. DNA probe
C. gene gun
D. inoculating needle

16. Normally CO2 and O2 enter a plant by
A. osmosis
B. active transport
C. diffusion
D. evaporation

17. During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place
A. during the first phase
B. during the second phase
C. during the third phase
D. same in all the phases

18. Recombinant vaccine for Hepatitis B virus has been synthesized against which of the following antigen?
A. Viral core antigen (HBcAg)
B. Viral surface antigen (HBsAg)
C. e antigen (HBeAg)
D. All of the above

19. Synthetic seeds are
A. artificially synthesized seeds
B. somatic embryos encapsulated in suitable matrix
C. seeds of plants modified genetically
D. none of these

20. Which of the following viruses are used as vectors for transferring genes to animal cells?
A. SV 40 virus
B. Bovine papilloma virus (BVP)
C. Retroviruses
D. All of these

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