Cengage Expert Team Solutions for Chapter: Biotechnology, Exercise 2: PERFECTING PAST PRELIMS

With the reference to stem cells, frequently in the news, which of the following statement(s) is/are correct?

1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.

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Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?

  1) To enable them to withstand drought.
  2) To increase the nutritive value of the produce.
  3) To enable them to grow and do photosynthesis in spaceships and space stations.
  4) To increase their shelf life.

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Recombinant DNA technology (Genetic Engineering) allows genes to be transferred:

1) Across different species of plants.
2) From animals to plants.
3) From microorganisms to higher organisms.

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Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to:

1) Resist drought and increase the absorptive area.
2) Tolerate extremes of pH.
3) Resist disease infestation.

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Consider the following techniques or phenomenon:

$1$) Budding and Grafting in fruit plants.
$2$) Cytoplasmic Male Sterility.
$3$) Gene Silencing.

Which of the above is/are used to create transgenic crop(s)?

The Genetic Engineering Appraisal Committee is constituted under the:

What is the application of somatic cell nuclear transfer technology?

With reference to agriculture in India, how can the technique of 'Genome Sequencing’, often seen in the news, be used in the immediate future? 

1. Genome Sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants.
2. This technique helps in reducing the time required to develop new varieties of crop plants.
3. It can be used to decipher the host-pathogen relationships in crops.

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