NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice
Read the given statements about auxins and state whether they are true or false: a. Auxin promotes apical dominance. b. Auxins have a negative impact on cytokinin levels. c. F.W. Went isolated auxins from the coleoptiles of the oat plant. d. Auxin promotes flowering in the pineapple plants.
Options
- Aa- false, b-false, c-true, d-false
- Ba- true, b-false, c-true, d-true
- Ca- true, b-false, c-true, d-false
- Da- false, b-true, c-true, d-true
Correct answer
B. a- true, b-false, c-true, d-true
Step-by-step solution
F.W. Went isolated the auxins from the Avena coleoptiles . Auxins promote apical dominance by inhibiting the growth of lateral buds. Auxins promote flowering in plants like pineapple as it is a growth-promoting hormone-like cytokinin. Auxins do not affect the cytokinin level negatively as they are not antagonistic in function.