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Consider the following techniques/phenomena: 1. Budding and grafting in fruit plants 2. Cytoplasmic male sterility 3. Gene silencing Which of the above is/are used to create transgenic crops?

Consider the following techniques/phenomena: 1. Budding and grafting in fruit plants 2. Cytoplasmic male sterility 3. Gene silencing Which of the above is/are used to create transgenic crops? Correct Answer 2 and 3

The correct answer is 2 i.e. 2 and 3 only.

  • Transgenic Crops are the crops that have their genomes modified through genetic engineering techniques either by the addition of a foreign gene or removal of a certain detrimental gene. the aim is to introduce a new trait to the plat which does not naturally occur.
  • Budding and Grafting are horticultural techniques, Grafting is the act of placing a portion of one plant (bud or scion) into or on a stem, root, or branch of another (stock) in such a way that a union will be formed and the partners will continue to grow.
    • In the budding process, a bud is taken from one plant and grown on another. it does not lead to any genetic modification. Hence, option 1 is not correct.
  • Cytoplasmic male sterility is total or partial male sterility in plants as the result of specific nuclear and mitochondrial interactions.
    • Male sterility is the failure of plants to produce pollen or male gametes.
    • The cytoplasmic male sterility systems are widely utilized in crop plants for hybrid breeding due to the convenience of controlling sterility.
  • Gene Silencing using RNA interference technology, transcriptional gene silencing, virus-induced gene silencing, has been used in horticultural techniques.
    • The double-strand RNAs present inside the cell are responsible for producing small interfering RNAs, short hairpin RNAs, and micro RNAs.

Related Questions

Consider the following techniques/phenomena.
1. Budding and grafting in fruit plants.
2. Cytoplasmic male sterility.
3. Gene silencing.
Which of the above is/are used to create transgenic crops?
Plant breeds manipulate sterility and floral morphology to take advantage of hybrid vigour.
Which of the basic methods listed below are utilised for this purpose?
1. Genetic male sterility
2. Self-incompatibility
3. Hybridization
4. Induced mutation
5. Cytoplasmic male sterility
Select the correct answer:
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Red fruit, green stem - 184
Yellow fruit, purple stem - 66
Yellow fruit, green stem - 47
What are the genotypes of the parent plants in this mating?
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