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NEET UG Neet B09 — practice questions

Explore 7 free Neet B09 questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Neet B09 questions and exercises with answers

Showing questions 1–7 of 7.

What do engineered microbes produce for a recombinant protein vaccine?Read the answer and worked solution →Which animal fits the NCERT definition of a transgenic animal?Read the answer and worked solution →Altering growth-factor expression in a transgenic animal helps study:Read the answer and worked solution →A transgenic mouse that models cystic fibrosis is mainly used to:Read the answer and worked solution →Which human protein made using transgenic animals is cited for treating emphysema?Read the answer and worked solution →Why did the Basmati patent example raise concerns in NCERT?Read the answer and worked solution →Why should a GM organism be assessed before release into an ecosystem?Read the answer and worked solution →

Worked practice questions

What do engineered microbes produce for a recombinant protein vaccine?

  1. Pathogen antigenic polypeptides
  2. Ready-made human antibodies
  3. Human memory lymphocytes
  4. Complete human chromosomes
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Correct answer: A. Pathogen antigenic polypeptides

A pathogen gene is expressed in bacteria or yeast to produce antigenic polypeptides. These antigens are used in recombinant vaccines.

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Which animal fits the NCERT definition of a transgenic animal?

  1. One with a transplanted kidney
  2. One expressing an introduced foreign gene
  3. One vaccinated against a virus
  4. One raised on fortified feed
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Correct answer: B. One expressing an introduced foreign gene

A transgenic animal has manipulated DNA that contains and expresses an extra foreign gene. A transplant, vaccination or dietary change alone does not establish this.

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Altering growth-factor expression in a transgenic animal helps study:

  1. DNA movement through agarose
  2. Bacterial antibiotic resistance
  3. Normal physiology and development
  4. Removal of insulin C peptide
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Correct answer: C. Normal physiology and development

Transgenic animals can reveal how gene regulation and growth factors affect normal body functions and development. NCERT uses insulin-like growth factor as an example.

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More Biology topics

Genetics and EvolutionReproduction in Organisms & PlantsBiotechnology and ApplicationsBiodiversity and ConservationThe Living World & Biological ClassificationNeural Control and Chemical CoordinationPrinciples of Inheritance and VariationAnimal Kingdom