Which ratio is used to illustrate that for every four offspring, three will express the dominant trait and one will express the recessive trait?4:3:11:13:14:1

The ratio that illustrates that for every four offspring, three will express the dominant trait and one will express the recessive trait is 3:1. This is a classic ratio observed in Mendelian inheritance where, in a monohybrid cross involving one trait (with one allele being dominant and another being recessive), the expected phenotypic ratio of offspring typically arises as follows:

1. Dominant Trait: 3 parts (dominant phenotype)
2. Recessive Trait: 1 part (recessive phenotype)

Thus, the correct expression would be 3:1 rather than the ratios you've provided (4:3, 11:13, or 14:1), as these do not align with the basic principles of Mendelian genetics. Therefore, when considering the original question, the correct answer remains the classic 3:1 ratio to express these traits.