How to Calculate Mendelian Genetics
What is Mendelian Genetics?
Mendelian genetics describes inheritance of traits controlled by single genes with dominant and recessive alleles. Mendel's laws of segregation and independent assortment predict offspring ratios.
Step-by-Step Guide
- 1Monohybrid cross Aa×Aa: 1:2:1 genotype, 3:1 phenotype ratio
- 2Dominant allele masks recessive
- 3Dihybrid cross AaBb×AaBb: 9:3:3:1 phenotype ratio
Worked Examples
Input
Tt × Tt
Result
25% TT, 50% Tt, 25% tt → 75% tall, 25% short
Classic 3:1 ratio
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