Advertisements
Advertisements
प्रश्न
Give a reason for the Following:
Pollen grains of wind-pollinated flowers are produced in large quantities.
उत्तर
Pollen grains of wind-pollinated flowers are produced in large quantities as it is an abiotic agent of
cross-pollination destruction rate is more.
APPEARS IN
संबंधित प्रश्न
Name the parts of an angiosperm flower in which development of male and female gametophyte take place.
In a flowering plant a microspore mother cell produces four male gametophytes while a megapore 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.
A capsicum flower has 240 ovules in its ovary. But, it produces a fruit with only 180 viable seeds.
Name a plant which flowers every twelve years.
Fragrant flowers with well developed nectaries are an adaptation for ______.
Verticillaster inflorescence is a characteristic feature of ______.
Angiosperms have dominated the land flora primarily because of their ______.
What is the similarity between gymnosperms and angiosperms?
Which of the following statement is incorrect?