Genetics Calculator
Free online genetics calculator. Punnett square, allele frequency. Perfect for students, teachers, and researchers.
Punnett Square (2×2)
AA
Aa
Aa
aa
Genotype Ratios
AA1/4 (25.0%)
Aa2/4 (50.0%)
aa1/4 (25.0%)
Phenotype Ratios
A-3/4 (75.0%)
aa1/4 (25.0%)
Probability of each outcome:
P(AA) = 1/4 = 25.0%
P(Aa) = 2/4 = 50.0%
P(aa) = 1/4 = 25.0%
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