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प्रश्न
How does the process of fertilisation take place in flowers?
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उत्तर
- When pollen lands on the stigma, it germinates and gives rise to a pollen tube that passes through the style and reaches the ovary of a pistil.
- When the pollen tube reaches an ovule, it releases the male gametes. A male gamete fuses with a female gamete in the ovule.
- This process is known as fertilisation. The cell which is formed after the fusion of a male and a female gamete is known as zygote.
- This zygote divides several times in order to form the embryo present inside the seed.
Process of fertilisation
APPEARS IN
संबंधित प्रश्न
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
Where is the male gamete formed in flowering plants?
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
What is made in ovary of a flower?
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
State whether the following statement is true (T) or false (F):
Stamens make egg cells.
Draw a labelled diagram of a bisexual flower.
(a) Identify A, B and C in the given diagram and write their functions.
(b) Mention the role of gamete and zygote in sexually reproducing organisms.
Explain sexual reproduction in plants.
In human beings, fertilization occurs in the ______
