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प्रश्न
Angiosperms bearing unisexual flowers are said to be either monoecious or dioecious. Explain with the help of one example each.
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उत्तर
Flowers that possess either stamens (male) or carpels (female) are called unisexual flowers. The plants possessing both male and female flowers in the same plant are are called monoecious and when male and female flowers are present on different plants, they are known as dioecious.
Example of monoecious plants: Cucurbits and coconut
Example of dioecious plants: Papaya and date palm
APPEARS IN
संबंधित प्रश्न
Draw a labelled mature stage of a dicotyledonous embryo.
Why does endosperm development precede embryo development in angiosperm seeds?
Identify the characteristic feature/s of helobial endosperm.
Which of the following triggers an acrosomal reaction of the sperm?
Ex-albuminous seeds differ from albuminous seeds in ____________.
The endosperm of gymnosperms is ______.
If the endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in the root tip cells will be ______.
Which of the following statements are true related to Seed X and Y?
 |
 |
| SEED X | SEED Y |
- Seed X is dicot and endospermic or albuminous.
- Seed X is dicot and non-endospermic or non-albuminous.
- Seed Y is a monocot and endospermic or albuminous.
- Seed Y is a monocot and non-endospermic or non-albuminous.
Choose the correct option with the respect to the nature of the seed.
Why does the zygote begin to divide only after the division of Primary endosperm cell (PEC)?
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are ______.
