Mendelian ratio

noun

: the ratio of occurrence of various phenotypes in any cross involving Mendelian characters

especially : the 3:1 ratio shown by the second filial generation of offspring from parents differing in respect to a single character

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now