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प्रश्न
Answer the following question.
Draw the diagram of a pistil where pollination has successfully occurred. Label the parts involved in reaching the male gametes to its desired destination.
उत्तर
The pollen tube reaching the ovule.
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संबंधित प्रश्न
Answer the following question.
Where does the process of megasporogenis start in an angiosperm? Describe the process up to the formation of an embryo sac.
Name the hormones influencing the follicular development of corpus luteum.
Given below is the diagram of a human ovum surrounded by a few sperms. Study the diagram and answer the following questions :
(a) Which one of the sperms would reach the ovum earlier?
(b) Identify 'D' and 'E'. Mention the role of 'E'.
(c) Mention what helps the entry of sperm into the ovum and write the changes occurring in the ovum during the process.
(d) Name the specific region in the female reproductive system where the event represented in the diagram takes place.
Among the terms listed below, those that of are not technically correct names for a floral whorl are:
- Androecium
- Carpel
- Corolla
- Sepal
Egg apparatus consists of ______.
Development of an organism from female gamete/egg without involving fertilization is ______.
Entry of pollen tube through micropyle is ______.
Ovule is straight with funiculus, embryo sac, chalaza, and micropyle lying on one straight line. It is ______.
Megasporangium along with its protective integuments is called ______.
In the figure of anatropous ovule given below, choose the correct option for the characteristic distribution of cells within the typical embryo sac
| Number of cells at the chalazal end | Number of cells at micropylar end | Number of nuclei left in the central cell | |
| A | 3 | 2 | 3 |
| B | 3 | 3 | 2 |
| C | 2 | 3 | 3 |
| D | 2 | 2 | 4 |
