Solvequill Blog · biology · 4 min read · 1 views
Punnett squares are probability tables
Read genetic crosses as chances, not guaranteed outcomes for every child.
Published:
A Punnett square does not predict the exact order of children. It describes probabilities for each independent offspring.
The main idea
Put one parent's gametes across the top and the other's down the side, then fill combinations carefully.
A short example
For , the genotype ratio is and the dominant phenotype chance is .
Check while you solve
- Separate genotype from phenotype.
- Treat each child as a new probability event.
- Use ratios only after all boxes are filled.
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