Biology questions
20584 published questions with worked solutions.
- When a microspore mother cell with 40 chromosomes undergoes meiosis, each of the four resulting cells has
- In flowering plant, a mature gametophyte is derived from a pollen mother cell by
- A microspore mother cell forms
- In angiosperms, the functional megaspore in the linear tetrad is generally
- Which one is female gametophyte in angiosperms?
- Pollen grains are preserved for long periods in fossils due to
- Which cell of the gametophyte of a normal angiosperm is diploid at the time of fertilization?
- Before dehiscence of anther,
- In the process of pollination in angiosperms, the receptive part in the flower receives
- If there are 24 microspore mother cells in mango, then how many meiotic divisions are required to produce 576 haploid microspores?
- Generally, how many megaspores take part in the development of female gametophyte?
- A linear tetrad of 4 cells lying in an axial row is formed during the development of
- Polar nuclei are found in
- What adaptations are observed in epithydrophilous flowers?
- Geitonogamy is found between flowers which are
- Find the wrong statement about entomophilous flowers from the following?
- Dioecious condition seen in papaya plant prevents
- In a bisexual flower, when the gynoecium matures earlier than the androecium it is called
- In nature, allogamy is met within
- In entomophily, insects visit flowers for