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NEET UG Biotechnology and Applications — practice questions — page 4

Explore 166 free Biotechnology and Applications questions in NEET 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 91–120 of 166.

The first MAJOR recombinant DNA pharmaceutical, released commercially in 1982, was:Read the answer and worked solution →In gel electrophoresis DNA fragments move towards the:Read the answer and worked solution →Which matrix is most commonly used to separate DNA fragments?Read the answer and worked solution →In an agarose gel the fragment that travels farthest is the:Read the answer and worked solution →PCR amplifies a chosen segment using two sets of:Read the answer and worked solution →Repeated cycles of PCR can amplify a segment about:Read the answer and worked solution →The standard PLANT cell transformation method uses:Read the answer and worked solution →The vector sequence from which replication begins is the:Read the answer and worked solution →An antibiotic resistance gene on a vector serves mainly as a:Read the answer and worked solution →A foreign gene ligated at the BamH I site of pBR322 destroys:Read the answer and worked solution →The thermostable polymerase used in PCR is taken from:Read the answer and worked solution →Sort each item into the right boxRead the answer and worked solution →Order the steps of gene cloningRead the answer and worked solution →Virus free plants can be raised from an infected plant using its:Read the answer and worked solution →The Bt toxin used in pest resistant crops comes from a:Read the answer and worked solution →Silencing a gene with a complementary double stranded RNA is:Read the answer and worked solution →Plant biotech or medical biotech?Read the answer and worked solution →Match the term to what it meansRead the answer and worked solution →NEET · Biology · Biotech — Medical or AgriculturalRead the answer and worked solution →Sort each advance by where it is usedRead the answer and worked solution →Fill the gaps on GM cropsRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Raising thousands of plants through tissue culture is called:Read the answer and worked solution →Plants raised from one parent by tissue culture are called:Read the answer and worked solution →Plant cells stripped of their walls by digestion are called:Read the answer and worked solution →Fusing protoplasts of two varieties gives a plant known as a:Read the answer and worked solution →Rice enriched with vitamin A by genetic modification is:Read the answer and worked solution →Inside Bacillus thuringiensis the Bt toxin is stored as:Read the answer and worked solution →The Bt protoxin becomes an active toxin because the insect gut is:Read the answer and worked solution →

Worked practice questions

The first MAJOR recombinant DNA pharmaceutical, released commercially in 1982, was:

  1. Recombinant human growth hormone
  2. Hepatitis B vaccine (recombinant)
  3. Erythropoietin (kidney patients)
  4. Recombinant human insulin (Humulin)
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Correct answer: D. Recombinant human insulin (Humulin)

HUMULIN (Eli Lilly, 1982) was the first commercial rDNA drug: human insulin produced by genetically modified E. coli. Before that, insulin came from animal pancreases. Hepatitis B recombinant vaccine came later (1986).

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In gel electrophoresis DNA fragments move towards the:

  1. Cathode
  2. Buffer
  3. Matrix
  4. Anode
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Correct answer: D. Anode

1. DNA carries a negative charge on its backbone. 2. A negative molecule is pulled to the positive electrode. 3. That electrode is the anode. _Source: syllabus Biology, Ch 9 'Biotechnology : Principles and Processes'_

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Which matrix is most commonly used to separate DNA fragments?

  1. Agarose
  2. Gelatin
  3. Alumina
  4. Amylose
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Correct answer: A. Agarose

1. The matrix must sieve fragments by size. 2. Agarose is a natural polymer from sea weeds. 3. It is the matrix in common use today. _Source: syllabus Biology, Ch 9 'Biotechnology : Principles and Processes'_

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More Biology topics

Genetics and EvolutionReproduction in Organisms & PlantsBiodiversity and ConservationThe Living World & Biological ClassificationNeural Control and Chemical CoordinationPrinciples of Inheritance and VariationAnimal KingdomBiology in Human Welfare & Health