18 Questions
During megasporogenesis, which type of cell division occurs?
Meiosis
In an angiosperm flower, where does the development of the female gametophyte take place?
Ovule
What structures are formed at the end of microsporogenesis?
Microspore tetrads
What is the term for the developmental sequence involving microspore tetrad, pollen grain, and male gametes?
Microgametogenesis
What is the primary characteristic of monosporic development of the female gametophyte?
Development from a single initial cell
Which process leads to the 7-celled, 8-nucleate nature of the female gametophyte?
Double fertilization
What is the event that occurs when the pollen tube enters the embryo sac?
Syngamy
Which structure forms the endosperm tissue in angiosperms?
Primary endosperm nucleus
What is the term used for the process of formation of seeds without fertilisation?
Apomixis
In angiosperms, what is the structure that develops into a fruit after fertilisation?
Ovary
Which event occurs in each embryo sac involving syngamy and triple fusion?
Double fertilisation
What is the term used for the process where the pollen grain germinates on the stigma during pollination?
Germination
What is the term for the process of pollen grains coming in contact with the stigma to effect pollination?
Chasmogamy
In cleistogamous flowers, why are they invariably autogamous?
Close proximity of anthers and stigma
Which type of flowers produce assured seed-set even in the absence of pollinators?
Cleistogamous flowers
What type of pollination involves the transfer of pollen grains from anther to stigma of another flower of the same plant?
Geitonogamy
Which type of pollination brings genetically different pollen grains to the stigma?
Xenogamy
What is the major advantage of cleistogamy to plants?
Assured seed-set without pollinators
Test your knowledge on angiosperm flower development and polyembryony phenomena with this quiz. Questions cover topics like the parts of a flower where male and female gametophytes develop, differences between microsporogenesis and megasporogenesis, and the developmental sequence of pollen formation.
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