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प्रश्न
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
विकल्प
Monoecious plant bearing unisexual flowers
Dioecious plant bearing only male or female flowers
Monoecious plant with bisexual flowers
Dioecious plant with bisexual flowers
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उत्तर
Dioecious plant bearing only male or female flowers
APPEARS IN
संबंधित प्रश्न
With the help of a suitable example, explain protandry.
Describe the characteristic features of wind pollinated flowers.
A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds.
Answer the following questions giving reasons :
(a) What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?
(b) What would have been the minimum number of ovules present in the ovary?
(c) How many megaspore mother cells were involved?
(d) What is the minimum number of microspore mother cells involved in the above case?
(e) How many male gametes were involved in this case?
What are chasmogamous flowers?
Find the odd-one out, giving reason:
Ovary, style, pollen grain, stigma
Which one of the following is one of the characteristics of self-pollinated flowers?
Exine and intine are the parts of
- Nucellus
- Antipodals
- Synergids
- Micropyle
Name the two types of pollination.
What is a flower? Draw a typical flower and label its different parts.
Mention various adaptations for wind pollination.
What are the different adaptations shown by bird-pollinated flowers?
Autogamy can occur in a chasmogamous flower if ______.
Triple fusion in Capsella bursa pastoris is fusion of male gamete with ______.
Which type of flower has ovary superior?
Which type of pollination does the figure indicate?
Which one of the following may require pollinators, but is genetically similar to autogamy?
Pollination in water lilies is carried out by ______.
Name the following:
Aquatic plants which are anemophilous.
