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प्रश्न
What is a bisexual flower?
उत्तर
A flower that contains both the male and female reproductive structure (stamen and pistil) is called a bisexual flower
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संबंधित प्रश्न
A liverwort plant is unable to complete its life cycle in a dry environment. State two reasons
Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).
Ovary ———————————
Anther ———————————
Egg ———————————
Pollen ———————————
Male gamete ———————————
Zygote ———————————
Differentiate between gametogenesis from embryogenesis.
Collect five bisexual flowers from your neighborhood and with the help of your teacher find out their common and scientific names.
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.
Draw a diagrammatic, labelled sketch of a sectional view of human ovary.
The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.
After fertilisation, the integuments of an ovule develop into : __________.
The terms homothallic and monoecious are used to denote ______.
External fertilisation occurs in majority of ______.
The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote, and the cells of the seedling will be, respectively, ______.
In flowering plants both male and female gametes are non-motile. The method to bring them together for fertilization is ______.
Which is correct?
Which plant will lose its economic value if its fruits are produced by induced parthenocarpy?
Gamete transfer occurs through water in all of the following except:
Rearrange the following events of sexual reproduction in the sequence they occur in a flowering plant:
Embryogenesis, Fertilisation, Gametogenesis, Pollination.
In haploid organisms that undergo sexual reproduction, name the stage in the life cycle when meiosis occurs. Give reasons for your answer.
Do all the gametes formed from a parent organism have the same genetic composition (identical DNA copies of the parental genome)? Analyse the situation with the background of gametogenesis and provide or give suitable explanation.
| 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
