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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Compare and contrast the advantages and disadvantages of the production of genetically modified crops.

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प्रश्न

Compare and contrast the advantages and disadvantages of the production of genetically modified crops.

अंतर स्पष्ट करें
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उत्तर

Sr. No. Advantages Disadvantages
1. Genetically modified (GM) crops have shown significant increases in yield and productivity. There could potentially be a reduction in the genetic diversity of crops.
2. GM crops show resistance to pests and diseases, reducing the need for chemical pesticides. They could potentially harm non-target organisms such as beneficial insects.
3. GM crops can tolerate abiotic stresses such as drought and salinity. Altered gene expression in GM crops may lead to unforeseen negative effects.
4. GM crops like Golden Rice, enriched with Vitamin A, offer enhanced nutritional value. There are potential health risks, such as allergenicity or toxicity, in genetically modified food.
5. The use of GM crops reduces agrochemical usage, thus lowering environmental pollution. Farmers’ dependence on biotech companies for GM seeds raises socio-economic and ethical concerns.
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अध्याय 10: Biotechnology and its Applications - EXERCISES [पृष्ठ १८७]

APPEARS IN

एनसीईआरटी Biology [English] Class 12
अध्याय 10 Biotechnology and its Applications
EXERCISES | Q 6. | पृष्ठ १८७
नूतन Biology [English] Class 12 ISC
अध्याय 12 Biotechnology and Its Applications
NCERT EXERCISES WITH ANSWERS | Q 3. | पृष्ठ ५५६

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संबंधित प्रश्न

Why do children cured by enzyme-replacement therapy adenosine deaminase deficiency need periodic treatment?


How did an American Company, Eli Lilly use the knowledge of r-DNA technology to produce human insulin?


Recombination DNA−technology is of great importance in the field of medicine. With the help of a flow chart, show how this technology has been used in preparing genetically engineered human insulins.


State the role of C-peptide in human insulin.


What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.


Can you suggest a method to remove oil (hydrocarbon) from seeds based on your understanding of rDNA technology and the chemistry of oil?


What is gene therapy? Name the first clinical case in which it was used.

 

 

Write any two biochemical/molecular diagonostic procedures for early detection of viral infection. Explain the principle of any one of them.


Describe the steps that are followed during secondary treatment of sewage.


The genetic defect adenosine deaminase deficiency may be cured permanently by ____________.


Which one of the following statements is true regarding DNA polymerase used in PCR?


Vaccines that use components of a pathogenic organism rather than the whole organism are called ____________.


How is the amplification of a gene sample of interest carried out using PCR?


A patient suffering from diabetes mellitus will have ______.


Due to which of the following reasons insulin extracted from pancreas of slaughtered animals cannot be used in humans to treat diabetes?


Which of the following is not an application of PCR (Polymerase Chain Reaction)?


With regard to insulin choose the correct options.

  1. C-peptide is not present in mature insulin.
  2. The insulin produced by rDNA technology has C-peptide.
  3. The pro-insulin has C-peptide.
  4. A-peptide and B-peptide of insulin are interconnected by disulphide bridges.

Choose the correct answer from the options given below.


The Adenosine deaminase deficiency results in ______.


Give the full form of ELISA. Which disease can be detected using it? Discuss the principle underlying the test.


Who was the first patient who was given gene therapy? Why was the given treatment recurrent in nature?


A patient is suffering from ADA deficiency. Can he be cured? How?


A host cell must be made competent, before it is able to receive an rDNA. Justify.


How many cycles of PCR are required to produce 250 molecules of DNA, starting with a single parental strand?


The ______ gene from Bacillus thuringiensis produces a protein that forms crystalline inclusions in bacterial spores.


Choose the INCORRECT statement. 


In the recombinant production of humulin using Escherichia coli, which plasmid vector and bacterial gene are fused with the human insulin A and B chain sequences?


Severe Combined Immunodeficiency Disease (SCID) caused by adenosine deaminase (ADA) deficiency arises due to which pathological mechanism?


Which diagnostic technique utilizes antigen-antibody interactions coupled with an enzyme colour reaction, making it well-suited for rapid mass screening?


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