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

How gene therapy has been used for the treatment of coronary artery angioplasty?

  • Ans 1: During coronary artery angioplasty,a balloon catheter is sometimes used to open up closed artery.The balloon catheter is coated with a plasmid that contains a gene for vascular endothelial growth factor.The expression of the gene which promotes the cell division of blood vessels to bypass the blocked area has been observed in at least one patient.
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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

How gene therapy has been used for the treatment of coronary artery angioplasty?

  • Ans 1: During coronary artery angioplasty,a balloon catheter is sometimes used to open up closed artery.The balloon catheter is coated with a plasmid that contains a gene for vascular endothelial growth factor.The expression of the gene which promotes the cell division of blood vessels to bypass the blocked area has been observed in at least one patient.
Submit

12th Class Biology Chapter 23 Short Questions Preparation - Set 2

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 3

Question # 1

What are palindromic sequences? OR Define palindromic sequence.

  • Ans 1: Restriction enzymes cut the DNA at very specific sites characterized by specific sequence of four or six nucleotides arranged symmetrically in the reverse order.Such sequences are known as palindromic sequences.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 4

Question # 1

What is taq polymerase and its significance?

  • Ans 1: Taq polymerase is an enzyme which is used in PCR. Its significance is that it can withstand with high temperature.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 5

Question # 1

Give three possible ways to get the gene of interest.Write three methods to get gene of interest.

  • Ans 1: Gene of interest can be obtained by following methods
  • Ans 2: i.To isolate it from chromosomes
    ii. Make it from mRNA
    iii. Synthesize it chemically.
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12th Class Biology Chapter 23 Short Questions Preparation - Set 6

Question # 1

How cancer patient are being treated by gene therapy?

  • Ans 1: Gene therapy is also being done to cancer patient,which make them more tolerant of chemotherapy.In clinical trials researchers have given genes to cancer patient that either make healthy cells more tolerant of chemotherapy or make tumors 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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23th Chapter

12th Class Biology Chapter 23 Short Questions

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