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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.

फरक स्पष्ट करा
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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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पाठ 10: Biotechnology and its Applications - EXERCISES [पृष्ठ १८७]

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

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Expand the Given and mention one application of each:

PCR


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.


State the cause of ADA deficiency in humans.Mention a possible cure for an ADA deficiency patient.


Expand the Given and mention one application of each:

ELISA


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


Describe the role of primers.


Describe the role of bacterium Thermus aquaticus in carrying the process of polymerase chain reaction.


The first clinical gene therapy was done for the treatment of ________.


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


How was Insulin obtained before the advent of rDNA technology? What were the problems encountered?


Human insulin is being commercially produced forma transgenic species of ______.


A probe which is a molecule used to locale-specific sequences in a mixture of DNA or RNA Mole cubs could be ______.


The site of production of ADA the body is ______.


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


ELISA is based on:


Now a days it is possible to detect the mutated gene causing cancer by allowing a radioactive probe to hybridize its complimentary DNA in a clone of cells, followed by its detection using autoradiography because ______


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


Discuss briefly how a probe is used in molecular diagnostics.


List the advantages of recombinant insulin.


Name the five key tools for accomplishing the tasks of recombinant DNA technology. Also mention the functions of each tool.


A cell-free method of amplifying DNA first developed in the mid 1980's revolutionised the field of biotechnology, Name the method and explain the basic steps of the technique involved.


  • Assertion: PCR is a powerful technique to identify genetic disorders.
  • Reason: PCR can detect mutations in low amounts of DNA.

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


Illustrate using any one example of transgenic bacteria.


Choose the INCORRECT statement. 


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