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प्रश्न
Describe the formation of helobial endosperm
उत्तर
Helobial type of endosperm:
a. It is an intermediate between nuclear and cellular type of endosperm.
b. First division of primary endosperm nucleus is followed by (division of cytoplasm) wall formation.
c. The wall formation results in the central cell being divided into a large micropylar and a small chalazal chamber.
d. In both the chambers the development occurs as seen in nuclear type.
e. This type is generally seen in Helobiae series of monocots, hence the name ‘Helobial Endosperm’.
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संबंधित प्रश्न
Describe the development of endosperm after double fertilisation in an angiosperm.
Why does endosperm development preceeds that of zygote ?
______ is the first cell of female gametophytic generation in angiosperms.
Which of the following triggers an acrosomal reaction of the sperm?
At what stage of endosperm development, will you observe nuclear or cellular type of endosperm?
In angiosperms, triple fusion is required for the formation of ______.
Indentify the wrong statement regarding post-fertilisation development.
If an endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in each cell of the root 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)?
