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प्रश्न
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
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उत्तर
A plant flowering in Mumbai cannot be naturally pollinated by pollen from the same species in New Delhi because pollen grains cannot travel such long distances to reach distant flowers.
However, if pollen grains are carried artificially, then pollination is possible.
Furthermore, pollen-pistil interaction involves pollen recognition, so even if pollen reaches the flower artificially, compatibility must be there for successful pollination.
संबंधित प्रश्न
Geitonogamous flowering plants are genetically autogamous but functionally cross-pollinated. Justify.
A flower of tomato plant following the process of sexual reproduction produces 200 viable seeds.
Answer the following questions giving reasons :
(a) What would have been the minimum number of ovules present in pre-pollinated pistil ?
(b) How many microscope mother cells would minimally be required to produce requisite number of pollen grains ?
(c) How many pollen grains must have minimally pollinated the carple ?
(d) How many male gametes would have used to produce these 200 viable seeds ?
(e) How many megaspore mother cells were required in this process ?
Name the part of the flower which the tassels of the corn- cob represent.
Fill in the blank:
Male sex cells in plants are called _________.
Differentiate between the following:
Self pollination and cross pollination.
Which one of the following is one of the characteristics of self-pollinated flowers?
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Differentiate Between Cross Pollination and Self Pollination:
The question has four options. Choose the correct answer:
Pollination by insect is known as
For which of the following attractants and rewards are required?
Both chasmogamous and cleistogamous flowers are present in ______.
Chief pollinators of agricultural crops are ______.
Which of these is a condition that makes flowers invariably autogamous?
The flower which does not open at all are called ______.
Which one of these statements is incorrect?
The following statements seem to describe the water-pollinated submerged plants.
Advantage of cleistogamy is:
In which one of the following pollination is autogamous?
Describe any three adaptations in anemophilous flowers.
Briefly discuss any two methods by which plants avoid self-pollination.
