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Activity 8.3 — Sex Determination in Humans
NCERT Activity 8.3: Explore how sex is determined in humans. Learn about X and Y chromosomes, gamete formation, and why the father determines the sex of the child.
How To Perform
1
Observe Chromosomes
See the XX (female) and XY (male) chromosome pairs.
2
Gamete Formation
Watch how X and Y chromosomes separate during meiosis.
3
Fertilization
See how sperm type (X or Y) determines the sex of the child.
4
Punnett Square
Build the Punnett square to see the 50:50 sex ratio.
⚠️ Safety Notes
- •This activity discusses biological sex determination based on chromosomes.
- •Sex determination is a natural genetic process — all outcomes are equally valuable.