A recessive lethal study found less homozygous mutant embryos during gestation than predicted by Mendelian ratio.

Drosophilid flies made experimental verification of genetics theories, such as Mendelian ratios and heritability, much easier.

Developing a knowledge and feel for the plant is more important than memorizing Mendelian ratios.

In crosses between heterozygous plants for the waxy character, a small but significant deviation from an expected Mendelian ratio in self-pollination is produced.

His work contains intricately constructed family trees, showing near-perfect Mendelian ratios in the inheritance of negative and positive traits.

Fewer homozygous mutant embryos were identified during gestation than predicted by Mendelian ratio.

The resulting Mendelian ratio of offspring from this mating would then be:

He reasoned that many carrier couples were not being counted, and he demonstrated methods for correcting results to produce the expected Mendelian ratios.

A viability at weaning study found less homozygous mutant animals were present than predicted by Mendelian ratio.

Instead of an expected Mendelian ratio of 87% cop1 -like plants, only 38% were observed, a significant shortfall.