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प्रश्न
Mention the changes a flower undergoes after fertilisation.
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उत्तर
- The outer layers of the ovule become impervious and hard and function as a seed coat. An ovule with an embryo inside is called a seed.
- The ovary enlarges and ripens to become a fruit. Other floral parts such as sepals, petals, stamens, styles, and stigma may fall off. However, in some cases, they remain persistent in the fruit.
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संबंधित प्रश्न
What is pollination?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
The correct sequence of reproductive stages occurring in flowering plants is ______
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
Draw a labelled diagram of a bisexual flower.
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
In a flowering plant, archesporium gives rise to ______.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
