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Economic Botany

Crop Improvement Practice Questions

20 free Crop Improvement practice questions for the Botany, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Crop Improvement questions

20 questions
  1. Q1. The process of bringing a wild plant species under human management and cultivation is known as:
  2. Q2. A plant introduction that is well-adapted to its new environment without any genetic modification is said to be:
  3. Q3. Which method of selection is most commonly used to improve self-pollinated crops by selecting individual superior plants and growing their progenies separately?
  4. Q4. The phenomenon where an F1 hybrid exhibits superior vigor and yield compared to both of its parents is termed:
  5. Q5. Which plant breeding technique involves the use of chemical or physical agents to create sudden, heritable changes in the DNA sequence?
  6. Q6. Colchicine is frequently used in crop improvement to induce:
  7. Q7. The method of breeding where the F1 hybrid is repeatedly crossed with one of its parents to transfer a specific gene is called:
  8. Q8. Which of the following is a classic example of an intergeneric hybrid (a cross between two different genera)?
  9. Q9. In crop improvement, the collection of all the different alleles for all the genes in a given species is called:
  10. Q10. The 'Green Revolution' in India was primarily driven by the introduction of semi-dwarf varieties of:
  11. Q11. Which type of selection is used for plants that are propagated asexually, such as potato or sugarcane?
  12. Q12. Emasculation is a crucial step in the hybridization of bisexual flowers. It involves:
  13. Q13. A variety that is produced by mixing seeds of several phenotypically similar superior lines is known as a:
  14. Q14. The use of 'Molecular Markers' to select for a desired trait without waiting for the plant to mature is known as:
  15. Q15. What is the primary objective of 'Biofortification' in crop improvement?
  16. Q16. Cytoplasmic Male Sterility (CMS) is a tool used by breeders primarily for:
  17. Q17. Which organization in India is primarily responsible for the collection and long-term storage of plant genetic resources?
  18. Q18. When a breeder selects a group of plants based on their appearance and harvests their seeds together to sow the next generation, it is called:
  19. Q19. The 'Ideotype' concept in plant breeding refers to:
  20. Q20. Which of the following is a disadvantage of using Pure Line varieties?