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NEET Practice Questions (MCQs) with Answers & Solutions

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Which of the following is a recombinant protein-

A. b Galactosidase in E.coli B. Insulin in humans C. Somatotropin in humans D. Interferon in E. coli

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Explanation

NCERT pg 203

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An example of a transgenic is

A. E.coli expressing b Galactosidase gene B. Carrot expressing Nif genes C. HIV expressing Reverse transcriptase gene D. Brassica expressing erusic acid gene

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Which of the following would you choose as the safest and least cumbersome selectable marker-

A. Ampicillin resistance gene B. Tetracyclin resistance gene C. Kanamycin resistance gene D. b Galactosidase gene

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Explanation

NCERT pg. 200

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Recombinant DNA is formed in nature during-

A. Crossing over at pachytene B. Integration of plasmid to form episome C. Integration of phage DNA to form prophage D. More than one is correct.

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Explanation

In all these processes DNA from two different sources combine to form Recombinant DNA

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Southern Blotting essentially makes use of a

A. Buffer B. Electrodes C. Agarose gel D. All of the above

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Explanation

Rest are used in electrophoresis

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The native charge on DNA molecules is

A. Positive B. Negative C. Neutral D. DNA is an ampholyte

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Explanation

DNA is acidic in nature

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The natural genetic engineer of plants is

A. Armillaria ostoyae B. Agrobacterium tumefacians C. Argemonaria geneticis D. Nuclearia incorporate

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Explanation

NCERT pg 200

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A distinct advantage of continuous culture over batch culture is

A. Higher productivity B. Versitality C. Can be used for different reactions everyday D. Continuous inflow of nutrients

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Explanation

There are two types of large scale culture techniques.

Continuous culture- The nutrients are continuously added and products continuously removed.

Batch Culture- All the nutrients are added in One batch and products harvested similarly. Vessel is cleaned and reused for the next production process.

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Plasmids are good vectors for genetic engineering because

A. They self replicate within bacterial cells B. Replicate freely outside bacterial cells C. Can be replicated in culture D. Can be replicated in laboratory using enzymes

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Explanation

NCERT pg 198

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In AGE, A stands for

A. Accelerated B. Attenuated C. Agarose D. Agar agar

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Explanation

NCERT pg 198

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