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प्रश्न
Draw a labelled mature stage of a dicotyledonous embryo.
उत्तर
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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.
Describe the formation of helobial endosperm
Why does endosperm development preceeds that of zygote ?
Describe the development of an endosperm in a viable seed. Why does endosperm development precedes embryo development?
Identify the ploidy of embryo and endosperm respectively formed after following cross.
An angiospermic male plant with 24 chromosomes in its pollen mother cells is crossed with female plant bearing 24 chromosomes in its root cells.
Ex-albuminous seeds differ from albuminous seeds in ____________.
In dicots, the pollen grains are usually ______
The endosperm of gymnosperms is ______.
Which of the following statements are true related to Seed X and Y?
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| 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.
The diagram given below shows the three types of endosperms in angiosperms.
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| 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.
