Consider the two statements:

I:  It is desirable to use restriction enzymes produce 'sticky ends' for cloning experiments in genetic engineering.
II:  If the donor DNA and the vector DNA are cut by such same restriction endonuclease, ligation of the two is easy.
 
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Only I is correct
4. Both I and II are incorrect

Subtopic:  Restriction Enzymes - Main Enzymes |
 72%

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The steps included in a cycle of Polymerase Chain Reaction are:
1. initiation, elongation, and termination
2. transfection, transformation, and transduction
3. denaturation, annealing, and extension
4. restriction, electrophoresis, and elution

Subtopic:  Polymerase Chain Reaction: PCR |
 93%

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Agrobacterium tumefaciens can be an effective vector for delivering genes of interest into the cells of:

1.  wheat 2.  soybean
3.  rice 4.  barley

Subtopic:  Transforming Plant & Animal Cell |
 68%

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In the given diagram of pBR322, the location of the recognition sequences of BamH I and Sal I are represented by the numbers:

1. 1 and 2
2. 3 and 4
3. 6 and 7
4. 5 and 8
Subtopic:  Cloning Vector |
 90%
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What controls the copy number of linked DNA if plasmid is used as a vector in bacterial transformation?

1. Ori 2. rop
3. Selectable markers 4. Promoter in the insert
Subtopic:  Cloning Vector | Obtaining Copy of Gene from Donor DNA |
 86%
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The work of which of the following scientists led to the establishment of the discipline of modern biotechnology?

1. Banting and Best 2. Bolivar and Rodriguez
3. Hershey and Chase 4. Cohen and Boyer
Subtopic:  Restriction Enzymes - Main Enzymes |
 84%
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A piece of DNA, somehow transferred into an alien organism, will be able to multiply itself in the progeny cells of organism if:

1. It includes the centromere
2. It becomes a part of chromosome
3. It does not contain any intron sequences
4. It is a single stranded polynucleotide

Subtopic:  Cloning Vector |
 86%
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What limitation of traditional hybridization procedures used in plant and animal breeding can be overcome by recombinant DNA procedures?

I: Inclusion and multiplication of undesirable genes
II: Inability of inclusion of desirable traits from other species
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Selectable Markers | Tools |
 68%
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A reporter enzyme used in biotechnology includes all the following except:
1. Green Fluorescent Protein
2. Luciferase
3.Beta Galactosidase
4. Chloramphenicol acetyl transferase

Subtopic:  Tools |

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Identify (a) and (b) bioreactors respectively in the given diagram:

 

1. Simple stirred-tank and sparged stirred – tank 
2. Sparged stirred - tank and simple stirred-tank
3. Airlift and tower
4. Tower and airlift

Subtopic:  Tools |
 90%
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