31.  Restriction enzymes are isolated chielfy from.......

A. Algae

B. Fungi

C. Protozoans

D. Prokaryotes

Answer : Option B

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32.  There are special proteins that help to open up DNA double helix in front of thereaplication work . these proteins are......

A. DNA gyrase

B. DNA polymerase I

C. DNA ligase

D. DNA topoisomerase

Answer : Option A

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33.  Technology which uses living components for the welfare of human being is.....

A. Biology

B. Botany

C. Bioinformatics

D. Biotechnology

Answer : Option D

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34.  Which prosess is involved in making bread cheese, beer and wine ?

A. Respiration / hydrolysis

B. Degradation

C. Fermentation

D. Decomposition

Answer : Option C

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35.  EFB stands for ........

A. European Foudation of Biotechnology

B. European Foundation of Biology

C. European Foundation of Biotechnology

D. European Foundation of Biology

Answer : Option C

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36.  The organism whoes gene have been artificially altered for desired efect is called as.......

A. genetically mutant organism

B. gene transfe

C. genetically modified organism

D. Genetically transferred organism

Answer : Option C

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37.  The sequence of DNA that reads the same backward and forward across the double strand is.......

A. Recipient sequence

B. palindromic sequence

C. Replicate sequence

D. origin sequence

Answer : Option B

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38.   How many restriction enzymes are known to be isolated ?

A. more than 800

B. more than 700

C. more than 600

D. more than 900

Answer : Option B

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39.  Which of the following step is necessary part of DNA recombination technology ?

A. Insertion of DNA fragment into vector

B. Insertion of vector into Bacteria

C. multiplication of the clones containing the recombination molecule

D. all above

Answer : Option C

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40.  Restriction enzymes belong to which class of enzymes ?

A. Nucleolase

B. Exo nucleases

C. Nucleases

D. Endonucleases

Answer : Option B

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