Tag: biotechnology and its applications

Questions Related to biotechnology and its applications

The genetically modified crops are known as 

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Transgenic species

  2. Transgenic plants

  3. Transgenic wildlife

  4. None of the above

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Correct Option: B
Explanation:

A transgenic crop plant contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. The inserted gene sequence (known as the transgene) may come from another unrelated plant, or from a completely different species: transgenic Bt corn, for example, which produces its own insecticide, contains a gene from a bacterium. 

Use of living organisms for removing pollutants from the biosphere is called.

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Green movements

  2. Phytoremediation

  3. Bioremediation

  4. Remediation

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Correct Option: C

Transgenic animals have been used 

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. For testing safety of vaccines

  2. For testing toxicity of drugs

  3. To produce useful biological products

  4. All the above

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Correct Option: D

More than 95% of transgenic animals are

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Rabbits

  2. Mice

  3. Fish

  4. Cows

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Correct Option: B

Transgenic animal means

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Genes of the animal are introduced into other animals

  2. All the genes are from the same animal

  3. These animals are used as vectors

  4. Introduction of exogenous DNA into the genome of an animal to create and maintain a stable heritable character

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Correct Option: D

Which of the following is not produced as transgenic animals?

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Sheep and pig

  2. Rat and Rabbit

  3. Dog and Banded Krait

  4. Cow and Fish

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Correct Option: C

What are hazardous traits?

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Ignitability

  2. Corrosivity

  3. Toxicity

  4. All of above

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Correct Option: D

Dolly sheep cloned by Dr. Ian Wilmut was genetically identical to

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. The donor sheep which donated diploid nucleus

  2. The sheep which donated the egg cell

  3. The surrogate mother

  4. The sheep which donated haploid nucleus

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Correct Option: A
Explanation:
  • Dolly is the first sheep which was developed by the technique of cloning. 
  • The sheep was developed from the diploid body cell. The somatic cell from the mother sheep was taken and the nucleus was injected into the egg cell.
  • This egg cell was cultured and transferred to the surrogate mother. 
  • The sheep Dolly was identical in the characters with the mother who donated the diploid nucleus from the body cell. 
  • The genes from the mother cells were transferred to Dolly. 
  • Thus, the correct answer is option A. 

In which of the following prokaryote organism the voluminous genetical works have been done?

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. Drosophila

  2. Escherichia coli

  3. TMV

  4. House fly

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Correct Option: B
Explanation:
  • Escherichia coli is considered as a model organism. The organism can be cultured and maintained very easily in the laboratory conditions. 
  • The genome of the prokaryotic bacteria has been mapped and the details about all the genes and the products have been known. 
  • This makes it easy to modify or alter and gene, introduce a new gene or mutate the gene and study the effect. The organism can be easily studied as the growth rate is high. 
  • So, many works related to genetics have been performed using this bacterium.
  • Thus, the correct answer is option B. 

Assertion : Organochlorine pesticides are organic compounds that have been chlorinated.

Reason : Fenitrothion is one of the organochlorine pesticides.

transgenic organisms biotechnology and its applications biotechnology and its application biology

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

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Correct Option: C
Explanation:

Pesticides are the substances used to kill or repel pests. On the basis of chemical structure, major pesticides are grouped under five categories.(i) organochlorines (ii) organophosphates (iii) carbamates (iv) pyrethroids (v) triazines. Organochlorines are basically organic compounds that have been chlorinated and have very low bio - degradation and get accumulated in environment and possess serious problems. DDT, BHC, Aldrin and Endosulphan are the examples of organochlorines.

 Fenitrothion is an example of organophosphate. 

So, the correct answer is 'If the assertion is true but the reason is false'