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प्रश्न
Which of the following is the correct sequence of events of sexual reproduction in a flower?
(a) pollination, fertilisation, seed, embryo
(b) seed, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seed
(d) embryo, seed, pollination, fertilisation
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उत्तर
(c) pollination, fertilisation, embryo, seed
The pollens are transferred to the stigma by pollination, the gametes then fuse and under go fertilisation to form the zygote which develops into an embryo and, then, into a seed.
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संबंधित प्रश्न
Name the parts A, B and C shown in the diagram and write their functions.
State significance of pollination.
Write the names of those parts of a flower which serve the same function as the following do in the animals :
(i) testis,
(ii) sperm,
(iii) ovary,
(iv) egg
Explain what you understand by sexual reproduction.
Where is the female gamete formed in flowering plants?
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
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
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Fill in the blank:
Seeds are formed from________.
Mention the function of Stigma.
Draw a labelled diagram of a bisexual flower.
Find the odd one out:
__________ is present in unisexual flower.
Write the functions of sepals
The male reproductive part of a flower is ______.
Identify the parts A, B, C, and D?
The ovaries of different flowers may contain ______.
What is the function of calyx?
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
