Sexual Reproduction in Flowering Plants questions
847 published questions with worked solutions.
- From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
- In a fertilized embryo sac, the haploid, diploid and triploid structures are
- In an embryo sac, the cells that degenerate after fertilization are
- While planning an artificial hybridization programme involving dioecious plants, which of the following steps would not be...
- The phenomenon observed in some plants where the sexual apparatus is used for forming seeds without fertilization is called
- In a flower, if the megaspore mother cell produces megaspores without undergoing meiosis, and if the megaspores develop into an...
- Which of the following has proved helpful in preserving pollen as fossils?
- Ploidy of endothecium, microspore mother cell, tapetum and microspore is respectively
- The pollen grains of rice and wheat lose their viability within _____ minutes of their release.
- The 'isobilateral type' of microspore arrangement in a tetrad is present in
- How many haploid nuclei are present in a mature pollen grain?
- An immature male gametophyte differs from a mature male gametophyte in that it
- Occurrence of a triploid (3n) primary endosperm nucleus is a characteristic feature of
- The body of the ovule is fused with the funicle at a point called
- Which type of pollination takes place inside a closed flower?
- Entry of pollen tube into the ovule through the integuments is called
- 'Cells in the micropylar region are called antipodal cells.' The above statement is
- How many nuclei are found in the female gametophyte?
- How many cells are found in the female gametophyte?
- Two nuclei within one cell are found in
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