Biotechnology (I) biology MCQ’s questions answers

 

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Biotechnology (I)

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Question 1
Ability of a plant or animal cell to repeatedly divide and differentiate into a complete organism is:-
A
Cloning
B
DNA finger printing
C
Cellular totipotency
D
mitosis
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Question 2
A restriction endonuclease breaks bonds between the:
A
Base pairs of a DNA molecule
B
Base pairs of DNA-RNA hybrid molecule
C
Sugar and phosphate components of a nucleic acid molecule
D
Exons and introns of a DNA molecule
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Question 3
In genetic engineering, a chimera is
A
an enzyme that links DNA molecules
B
a plasmid that contains foreign DNA
C
a virus that infects bacteria
D
a fungi
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Question 4
Read the following statements and select the correct ones:
(i) Same kind of sticky ends are produced when DNA has been cut by different restriction enzymes.
(ii) Exonucleases make cuts at specific positions with the DNA.
(iii) Hind II was the first restriction endonuclease to be isolated.
(iv) A bacteriophage has the ability to replicate within the bacterial cells by integrating its DNA with bacterial DNA.
(v) Presence of more than one recognition sites within the vector facilitates the gene cloning.
A
(i), (iii) and (iv)
B
(i) and (iv)
C
(iii) and (iv)
D
(iii), (iv) and (v)
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Question 5
Enzymes used in PCR is .....
A
Taq polymerase
B
gyrase
C
transcriptase
D
hexokinase
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There are 5 questions to complete.

 

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