Biology
Assertion (A): Dioecious plants bear hermaphrodite flowers on different plants.
Reason (R): Dioecious plants bear staminate and pistillate flowers on the same plant.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Flower
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Answer
Both A and R are False.
Reason — Dioecious plants do not bear hermaphrodite flowers (flowers with both male and female organs). Instead, male and female flowers are on separate plants. In monoecious plants, stamens and pistil are on the same plant.
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Related Questions
A biology teacher asked her students to give two examples of dioecious plants.
Ishan said: Maize and Palm.
Aashish said: Pumpkin and Papaya.
Palak said: Palm and Papaya.
Payal said: Pumpkin and Maize.Who was correct?
- Ishan
- Aashish
- Palak
- Payal
Assertion (A): All the flowers of angiospermic plants are complete or perfect.
Reason (R): Angiospermic flowers contain all the four floral whorls — Calyx, Corolla, Androecium and Gynoecium.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): The kind of androecium in which the stamens are united in one group by their filaments is termed as Monadelphous.
Reason (R): Monadelphous stamens are found in Pea and Bombax flowers.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): The most attractive, colourful part of a flower is calyx.
Reason (R): Calyx is the whorl of sepals which protects the young flower bud. Calyx, when green, also performs photosynthesis.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.