Sexual Reproduction - Pre-fertilisation Events - Gametogenesis

Mention the ploidy of the different types of cells present in the female gametophyte of an angiosperm.

Explain why meiosis and gametogenesis are always interlinked?

Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).

Ovary ———————————

Anther ———————————

Egg ———————————

Pollen ———————————

Male gamete ———————————

Zygote ———————————

Draw a diagrammatic, labelled sketch of a sectional view of human ovary.

Examine a few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?

State the fate of a pair of autosomes during gamete formation.

Differentiate between gametogenesis from embryogenesis.

Explain the significance of meiocytes in a diploid organism.