Advertisements
Advertisements
प्रश्न
Collect five bisexual flowers from your neighborhood and with the help of your teacher find out their common and scientific names.
उत्तर १
Examples of plants bearing bisexual flowers are
(1) Water lily ( Nymphaea odorata)
(2) Rose (Rosa multiflora )
(3) Hibiscus (Hibiscus Rosa-sinensis )
(4) Mustard ( Brassica nigra)
(5) Petunia (Petunia hybrida)
उत्तर २
You can observe following bisexual flowers in your kitchen and colony gardens :
(1)Brassica (sarson) – Brassica campestris
(2)Onion – Allium cepa
(3)Garden Pea (Edible pea) – Pisum sativum
(4)Petunia – Petunia hybrida
(5)China rose (shoe flower) – Hibiscus rosa- sinensis
APPEARS IN
संबंधित प्रश्न
Explain the significance of meiocytes in a diploid organism.
Explain why meiosis and gametogenesis are always interlinked?
State the fate of a pair of autosomes during gamete formation.
Mention the ploidy of the different types of cells present in the female gametophyte of an angiosperm.
The terms homothallic and monoecious are used to denote ______.
Fusion of unrelated gametes is called ______.
External fertilisation occurs in majority of ______.
Choose the correct statements.
Given below are a few statements related to external fertilization.
- The male and female gametes are formed and released simultaneously
- Only a few gametes are released into the medium
- Water is the medium in a majority of organisms exhibiting external fertilization
- Offspring formed as a result of external fertilization have better chance of survival than those formed inside an organism
In flowering plants both male and female gametes are non-motile. The method to bring them together for fertilization is ______.
Which of the following statements is true of date palm?
Which is correct?
In meiosis, division is ______.
What is true about the change in fertilized eggs of humans?
Rearrange the following events of sexual reproduction in the sequence they occur in a flowering plant:
Embryogenesis, Fertilisation, Gametogenesis, Pollination.
Is the presence of large number of chromosomes in an organism a hindrance to sexual reproduction? Justify your answer by giving suitable reasons.
Define perisperm.
| Fertilisation is the key process in sexually reproducing organisms and it acts as a vital link between two generations. Flowering plants adopt a unique pattern of sexual reproduction as compared to other organisms. |
- Explain the process of fertilisation in angiosperms.
- What is the precise location and function of filiform apparatus in the embryo sac of angiosperms?
- Fruits and seeds are generally formed due to fertilisation. Name the process involved in the production of the following without fertilisation:
- Fruits
- Seeds
