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 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 1

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 2

Question # 1

What do you known about particle gun?

  • Ans 1: In callus tissue culture gene can be introduced in the cell by particle gun method in which callus is bombarded by DNA coated metal particles gene is inserted in the cell.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 3

Question # 1

Write down two different methods in gene sequencing for generation of DNA fragments.

  • Ans 1: Gene sequencing can be done by
  • Ans 2: i) Maxam-Gillbert method
    ii)Sanger's method
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12th Class Biology Chapter 23 Short Questions Preparation - Set 4

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 5

Question # 1

Write down the treatment of cancer through gene therapy.

  • Ans 1: In cancer gene therapy patient is given genes which make either healthy cell more tolerant to chemotherapy or male tumor more vulnerable to it.Once the bone marrow stem cells were protected it was possible to increase the level of chemotherapy to kill the cancer cells
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12th Class Biology Chapter 23 Short Questions Preparation - Set 6

Question # 1

What is DNA finger printing?Give its uses.

  • Ans 1: It is a technique in which entire genome of an individual can be subjected to DNA analysis by gel electrophrasis.
    It can be used to identify the culprits.Problems of disputed parenthood can be solved by this method.
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12th Class Biology Chapter 23 Short Questions

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