Question

Mendel's experiments demonstrated that any time two hybrids are cross-bred the dominant trait will appear in the phenotype of ____________% of of the the offspring.

Answer 1

Mendel's monohybrid cross experiments showed that 75% of the offspring will exhibit the dominant trait after two hybrids with a dominant and recessive trait are cross-bred.

Step-by-step explanation:

Mendel's experiments with garden pea plants demonstrated the principles of dominance and recessiveness in hereditary traits. When two hybridized plants with a dominant and a recessive trait (for example, yellow and green seeds) are cross-bred, Mendel discovered that the dominant trait will appear in the phenotype of 75% of the offspring. This is because the resulting F2 generation from a monohybrid cross will have a genotypic ratio of 1:2:1 for the alleles, with homozygous dominant (AA), heterozygous (Aa), and homozygous recessive (aa) genotypes. Since both AA and Aa individuals express the dominant trait, their combined occurrence leads to three out of four, or 75%, of the offspring displaying the dominant phenotype.