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MCQ on Biotechnology Principles and Processes

1. Examples for clones
a) Monozygotic identical twins
b) Vegetative reproducing organism
c) Sexually reproducing organisms
d) All except C
 
2. Transgenic organisms means
a) An organism with all desirable characters
b)an organism with a particular mutated gene
c) an organism with foreign gene by genetic engineering
d) An organism with a number of mutated characters.
 
3. Genetically modified DNA fragments are called
a) Recombinant DNA
b) S DNA
c) Mitochondrial DNA
d) None of these
 
4. Restriction endonuclease (RE) was discovered by
restriction endonuclease
a) Meselson
b) Cohen
c) Arber
d) Watson
 
5. Molecular scissors are
a) Ligase
b) Helicase
c) Restriction endonuclease
d) DNA polymerase
 
6. Totipotency means
a) Ability of a cell to grow into a complete plant
b) Ability of an animal cell to recombine with plant cell
c) Ability of a cell to grow into a complete individual
d) Ability of an animal cell to fully developed animal cell
 
7. Artificial synthesis of DNA without a template was first done by
a) Khorana
b) Geier
c) Meselson
d) Watson
 

8. The technique of DNA fingerprinting was perfected by
a) Stahl
b) Beadle and Tatum
c) Franklin
d) Alec Jeffreys
 
9. Gene cloning means
a) Production of mutated genes
b) Production of wild genes
c) Production of dominant genes
d) production of large populations of desired DNA fragments
 
10. For DNA finger printing we need
a) cells from the tip of finger
b) cells from any part of the body
c) cells from the reproductive organs
d) any cells from the fingers

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Answers
1. d) All except C
2. c) an organism with foreign gene by genetic engineering
3. a) Recombinant DNA
4. c) Arber
5.c) Restriction endonuclease
6. c) Ability of a cell to grow into a complete individual
7. a) Khorana
8. d) Alec Jeffreys
9. d) production of large populations of desired DNA fragments
10. b) cells from any part of the body

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