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5 cards from this section. Quick, good the night before a test.
Name the process by which sperm are formed and the place where it occurs.
The name of the process ends in -genesis.
How many chromosomes are present in a human secondary spermatocyte?
Secondary cells are formed by the first meiotic division.
At what stage do primary oocytes remain paused from before birth until puberty?
The pause happens very early in the first meiotic division.
How many functional gametes are formed from one primary oocyte?
Think of the polar bodies.
A woman aged 30 ovulates. Trace the history of the cell released, from its formation to this moment, and state what must happen for it to become an ovum.
List the pauses in order: prophase I (from before birth) and metaphase II (from just before ovulation until a sperm enters).
Spermatogenesis produces very large numbers of small, motile sperm, while oogenesis usually releases one large secondary oocyte each cycle. Explain how the structure of each gamete and the way it is produced suit its role.
Think about quantity against quality, and about who has to move.
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