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प्रश्न
Describe the development of endosperm after double fertilisation in an angiosperm.
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उत्तर
Development of Endosperm
- The primary endosperm nucleus repeatedly divides to give rise to free nuclei. This stage of development is called free nuclear endosperm.
- Cell wall formation occurs next, resulting in a cellular endosperm.
- The endosperm may either be fully consumed by the growing embryo (as in pea and beans) or retained in the mature seed (as in coconut and castor).
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संबंधित प्रश्न
Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of any four examples.
Why does endosperm development precede embryo development in angiosperm seeds?
______ is the first cell of female gametophytic generation in angiosperms.
A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be ______.
The endosperm of gymnosperms is ______.
Double fertilization leading to initiation of endosperm in angiosperms require ______.
Mark the odd one.
The coconut water from tender coconut is ______
Coconut water contains:
The diagram given below shows the three types of endosperms in angiosperms.
 |
 |
 |
| Type 1 | Type 2 | Type 3 |
- Identify the three types of endosperms shown above.
- Name the type of endosperm which commonly occurs in polypetalous dicots.
