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प्रश्न
The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be ______.
विकल्प
20
10
40
15
उत्तर
The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be 20.
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संबंधित प्रश्न
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.
The terms homothallic and monoecious are used to denote ______.
Fusion of unrelated gametes is called ______.
In animals, juvenile phase is followed by ______.
Choose the statements that are true from the options below:
The statements given below describe certain features that are observed in the pistil of flowers.
- Pistil may have many carpels
- Each carpel may have more than one ovule
- Each carpel has only one ovule
- Pistil have only one carpel
In flowering plants both male and female gametes are non-motile. The method to bring them together for fertilization is ______.
Development of an egg without fertilization is called ______.
Meiosis takes place in ______.
