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CUET UG Biotechnology and Applications — practice questions — page 4

Explore 112 free Biotechnology and Applications questions in CUET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Biotechnology and Applications questions and exercises with answers

Showing questions 91–112 of 112.

Human insulin is built from two polypeptide chains joined by:Read the answer and worked solution →The extra stretch removed as pro-insulin matures is the:Read the answer and worked solution →Human insulin was first produced by recombinant means in:Read the answer and worked solution →Inserting a normal gene to correct an inherited defect is:Read the answer and worked solution →The first clinical gene therapy treated a deficiency of:Read the answer and worked solution →Nucleases that remove nucleotides from DNA ends are:Read the answer and worked solution →Separated DNA bands become visible after staining with:Read the answer and worked solution →Loss of gene function caused by a DNA insert inside it is:Read the answer and worked solution →Which plasmid was reworked into a cloning vector for plants?Read the answer and worked solution →Restriction enzymes are popularly called:Read the answer and worked solution →Which enzyme is used to open plant cells before DNA isolation?Read the answer and worked solution →Purified DNA finally precipitates out on adding chilled:Read the answer and worked solution →Separation and purification of the final product is called:Read the answer and worked solution →Hind II cuts DNA on recognising a specific sequence of:Read the answer and worked solution →PCR is now used routinely to detect which virus?Read the answer and worked solution →Most transgenic animals produced so far have been:Read the answer and worked solution →Rosie, the first transgenic cow, gave milk enriched in human:Read the answer and worked solution →Transgenic mice are being used to test the safety of the:Read the answer and worked solution →Which body clears the safety of GM organisms in India?Read the answer and worked solution →The genes cryIAc and cryIIAb protect cotton against:Read the answer and worked solution →Which enzyme joins two cut DNA ends to make recombinant DNA?Read the answer and worked solution →The power of any plant cell to grow into a whole plant is:Read the answer and worked solution →

Worked practice questions

Human insulin is built from two polypeptide chains joined by:

  1. Disulphide bridges
  2. Hydrophobic pockets
  3. Phosphate linkages
  4. Glycosidic linkages
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Correct answer: A. Disulphide bridges

1. Insulin has a chain A and a chain B. 2. The two chains have to be held together. 3. Disulphide bridges make that link. _Source: syllabus Biology, Ch 10 'Biotechnology and its Applications'_

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The extra stretch removed as pro-insulin matures is the:

  1. D peptide
  2. C peptide
  3. A peptide
  4. B peptide
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Correct answer: B. C peptide

1. Insulin is first made as a pro-hormone. 2. The pro-hormone carries an extra stretch. 3. That stretch, the C peptide, is cut out on maturing. _Source: syllabus Biology, Ch 10 'Biotechnology and its Applications'_

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Human insulin was first produced by recombinant means in:

  1. 1997
  2. 1990
  3. 1983
  4. 1963
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Correct answer: C. 1983

1. An American company made the two chains separately. 2. It then joined them by creating disulphide bonds. 3. This was done in 1983. _Source: syllabus Biology, Ch 10 'Biotechnology and its Applications'_

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