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

Name salt tolerant plant.

  • Ans 1: Rice and sugar cene are salt tolerance crops.
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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

Name salt tolerant plant.

  • Ans 1: Rice and sugar cene are salt tolerance crops.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 2

Question # 1

What is Genome?.

  • Ans 1: A complete set of chromosomes which is haploid in number is called genome or a full set of genes of an individual is called genome.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 3

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 4

Question # 1

What are restriction enzymes?Who first isolated them?

  • Ans 1: These are natural enzymes of bacteria which they use for their own protection against viruses. The restriction viruses cut down the viral DNA,but does not harm to the bacterial chromosome.In 1970,Hamilton'O smith isolated the first restriction enzyme.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 5

Question # 1

What is Anther Culture?

  • Ans 1: Anther culture is a technique in which mature anthers are cultured in a medium containing vitamins and growth regulators.Anther culture is a direct way to produce plants that express recessive alleles.If the recessive alleles govern desirable traits,the plants have these traits.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 6

Question # 1

Define biotechnology.Name two biotechnology products.

  • Ans 1: It is a technology in which chemical processes of living organisms can be used for the welfare or mankind.Its products are lnsulin,Growth homones
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12th Class Biology Chapter 23 Short Questions

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