There is a restriction endonuclease called Eco RI. What does 'co' part in it stand for?

1. Coelom                         

2. Coenzyme

3. coli                               

4. Colon

Subtopic:  Tools: Enzymes: II | Tools |
 90%
From NCERT
NEET - 2011
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Agarose extracted from sea weeds finds use in

1. tissue culture

2. PCR

3. gel electrophoresis

4. spectrophotometry

Subtopic:  Process of Biotech |
 95%
From NCERT
NEET - 2011
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Continuous addition of sugars in ‘fed batch’ fermentation is done to

1. obtain antibiotics

2. purify enzymes

3. degrade sewage

4. produce methane

Subtopic:  Large Scale Production: II | Bioreactors/Downstream Processing | Large Scale Production |
NEET - 2011
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Which one of the following is used as vector for cloning genes into higher organisms?

1. Baculovirus

2. Salmonella typhimurium

3. Rhizopus nigricans

4. Retrovirus

Subtopic:  Tools: Vectors: II | Tools |
 74%
From NCERT
NEET - 2010
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Which one of the following palindromic base sequences in DNA can be easily cut at about

the middle by some particular restriction enzyme?

1. 5'-CGTTCG-3'

     3'-ATGGTA--5'

2. 5'-GATATG-3'

     3'-CTACTA-5'

3. 5'-GAATTC-3'

     3'-CTTAAG-5'

4. 5'-CACGTA-3'

     3'-CTCAGT-5'

Subtopic:  Tools: Enzymes: II | Tools |
 94%
From NCERT
NEET - 2010
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DNA or RNA segment tagged with a radioactive molecule is called

1. vector

2. probe

3. clone

4. plasmid

Subtopic:  Molecular Diagnosis |
 94%
From NCERT
NEET - 2010
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Restriction endonucleases are enzymes which

1. make cuts at specific positions within the DNA molecule

2. recognize a specific nucleotide sequence for binding of DNA ligase

3. restrict the action of the enzyme DNA polymerase

4. remove nucleotides from the ends of the DNA molecule

Subtopic:  Tools: Enzymes: II | Tools |
 91%
From NCERT
NEET - 2010
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Which one of the following is commonly used in transfer of foreign DNA into crop plants?

1. Trichoderma harzianum

2. Meloidogyne incognita

3. Agrobacterium tumefaciens

4. Penicillium expansum

Subtopic:  Tools: Vectors: II | Tools |
 93%
From NCERT
NEET - 2009
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Gel electrophoresis is used for

1. cutting of DNA into fragments

2. separation of DNA fragments according to their size

3. construction of recombinant DNA by joining with cloning vectors

4. isolation of DNA molecule

Subtopic:  Process of Biotech | Separation and Isolation of DNA fragments |
 92%
From NCERT
NEET - 2008
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Human insulin is being commercially produced from a transgenic species of

1. Escherichia

2. Mycobacterium

3. Rhizobium

4. Saccharomyces

Subtopic:  Med Applications & Humulin |
 89%
From NCERT
NEET - 2008
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