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प्रश्न
Give an example of an angiosperm seed that has a perisperm. Name the part the perisperm develops from.
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उत्तर
The perisperm is developed from the residual, persistent nucellus in some seeds. It is found in black pepper and beet.
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संबंधित प्रश्न
Sketch and label stages in the development of the angiospermic female gametophyte from the functional megaspore.
List the three stages the annuals and biennial angiosperms have to pass through during their life cycle.
In a flowering plant a microspore mother cell produces four male gametophytes, while a megaspore mother cell forms only one female gametophyte. Explain.
Read the statement and answer the questions that follow.
A flower of brinjal has 520 ovules in its ovary. However, it produces a fruit with only 480 viable seeds.
(a) What could have prevented the rest of the 40 ovules from maturing into viable seeds? Explain giving a reason.
(b) Describe the development of a dicot embryo in a viable seed.
(c) Why certain angiospermic seed albuminous while others are exalbuminous? Explain.
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Science of cultivation, breeding, marketing and arrangement of flowers is called ______.
The flower is the site of ______.
The flower is a highly modified and condensed reproductive shoot specially meant for ______
