2nd Year Biology Chapter 23 Online Preparation (Biotechnology)

Online Short Questions For Chapter 9 "12th Class Biology Chapter 23 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 23 Short Questions Preparation

Question # 1

What is cystic frbrosis?

  • Ans 1: In cystic fibrosis patient lack a gene that codes for transmembrane carrier of the chloride ions.Patient often die due to numerous infections of the respiratory tract.
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Prepare Complete Set Wise Questions For Chapter 9 "12th Class Biology Chapter 23 Short Questions Preparation "

12th Class Biology Chapter 23 Short Questions Preparation - Set 1

Question # 1

What is cystic frbrosis?

  • Ans 1: In cystic fibrosis patient lack a gene that codes for transmembrane carrier of the chloride ions.Patient often die due to numerous infections of the respiratory tract.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 2

Question # 1

Define plasmid.Give its uses.

  • Ans 1: Plasmid are natural extra chromosomal circular DNA molecules which carry genes for antibiotic resistance and fertility etc.
    plamids are used as vector to insert desire gene into bacterial or host cell.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 3

Question # 1

What is aspartame?

  • Ans 1: Aspartame is a dipeptide sweetner better known as nutrasweet.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 4

Question # 1

What steps are involved to produce recombinant DNA?

  • Ans 1: Steps of recombinant DNA technology are
  • Ans 2: i To get gene of interest which is to be cloned
    ii Restriction enzyme to cut desired gene and plasmid
    iii Vectors in which gene of interest could be placed
    iv The gene of interest along with the vector is then introduced into an expression system as a result of which a specific product is made.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 5

Question # 1

Differentiate between Sanger's method and Maxam-Gilbert method of gene sequencing.

  • Ans 1: Sanger's method: In Sanger's method dideoxyribo nucleoside triphosphates are used to terminate DNA synthesis at different sites.
  • Ans 2: Maxam-Gilbert method: In Maxam Gilbert method DNA threads are chemically cut into pieces of different size.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 6

Question # 1

What is cell suspension culture?

  • Ans 1: In cell suspension culture actively growing cultures are cut in to small pieces and shaken in a liquid nutrient medium so that single cell or small group of cells break off and from a suspension.These cell produce the same chemical as entire plant.
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12th Class Biology Chapter 23 Short Questions

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