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प्रश्न
Triple fusion involves ______.
विकल्प
Fusion of male gamete with female gamete
Fusion of tube nucleus with generative nucleus
Fusion of two polar nuclei
Fusion of second male gamete with two polar nuclei
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उत्तर
Triple fusion involves fusion of second male gamete with two polar nuclei.
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संबंधित प्रश्न
Name and differentiate between the two modes of pollination in flowering plants.
Name the parts labelled as A, B, C and D in the diagram given below:
How is the process of pollination different from fertilization?
The anther contains ______.
The process of fusion of the male and female gametes is called ______.
Name the part made up of the stigma, style and ovary.
Name the swollen lower part of the carpel.
Where are the pollen grains produced?
What are the reproductive organs in a flower?
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which grows into root.
Name the part of a seed which grows into shoot.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
(b) anther
(c) ovary
(d) style
In the figure given alongside, the parts marked A, B and C are sequentially:
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
Fill in the blanks:
A stamen consists of ______ and ________.
Fill in the blank:
Seeds are formed from________.
Mention the function of Flower.
Identify A, B, C and D in the given diagram and write their names.
List any two differences between pollination and fertilization.
Identify the odd. Stigma, Style, Pollen, Ovary.
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
Explain sexual reproduction in plants.
Prepare a slogan for campaign against female foeticide.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Mention pollination types.
Pollen grains from anther are transferred to the stigma.
Which of the following are the chemical components of the wall of pollen tube?
Pineapple fruit develops from ______.
The process of release of eggs from the ovary is called ______
In human beings, fertilization occurs in the ______
Double fertilization means ______.
What are the agents for pollination?
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
 |
 |
 |
In male reproductive whorl of a flower the archesporial cells are formed by ______.
