Genetics problem involving fish with 2 back fins (dominant) and 1 back fin (recessive), using Punnett squares to analyze inheritance patterns.

A genetics worksheet featuring a family of blue fish with purple fins, illustrating a Punnett square problem to determine genotypes based on back fin traits.

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- 2 back fins
- 1 back fin
- FF and Ff
- There are 6 baby fishes that have dominant phenotype and 2 baby fishes that have recessive phenotype.
- [Punnett Square 1: Top row F, F; Left column F, f; Cells: FF, FF, Ff, Ff]
- Ff and Ff
- The only possible Punnett square is the last one since there is a 75% possibility to produce 2 back fins offspring and 25% possibility to produce a 1 back fin offspring. The other squares cannot be considered because it cannot produce both 2 back fins and 1 back fin offspring at the same time.

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