Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

161.

The cell derived from meristems differentiate and regain the capacity to divide by a phenomenon called

  • Differentiation

  • Dedifferentiation

  • Redifferentiation

  • Totipotency

  • Totipotency


162.

What is the site of perception of photoperiod necessary for induction of flowering in plants?

  • Pulvinus

  • Shoot apex

  • Leaves

  • Lateral buds


Advertisement

163.

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

  • Gibberellin and Cytokinin

  • Gibberellin and Abscisic acid

  • Cytokinin and Abscisic acid

  • Auxin and Ethylene


D.

Auxin and Ethylene

Plant hormone auxin induces flowering in pineapple. Ethylene also helps in synchronization of flowering and fruit set up in pineapple.


Advertisement
Advertisement