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प्रश्न
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
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उत्तर
The ovule becomes a seed after fertilisation.
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संबंधित प्रश्न
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below:
Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon.
On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the above list:
(a) Testa, Radicle, Cotyleddon
(b) Tegmen, Radicle, Micropyle
(c) Cotyledon, Plumule, Testa
(d) Radicle, Cotyledon, Plumule
Mention the changes a flower undergoes after fertilisation.
How is the process of pollination different from fertilization?
Fill in the following blank with suitable word :
The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
How is the process of pollination different from fertilization?
Explain the term 'fertilisation'.
Describe the process of fertilisation in a flower with the help of labelled diagrams.
(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of yellow powdery substance present in the anther of a flower?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
The correct sequence of reproductive stages occurring in flowering plants is ______
In what ways is fertilisation in a plant similar to fertilisation in a human?
Pollen grains are formed by _________ division in locules of anthers.
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
The ovule of an angiosperm is technically equivalent to ______
Generally, in a pollen tube, which of the following moves to the tip of the tube?
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
Variations occur as a result of ______
Which out of the following processes does not lead to the formation of clones.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
