<em><u>F1 or the first filial generation is the first generation of offspring produced by crossing a set of parents to help show what genes will be inherited from crossing pea plants. Therefore, the F1 generation consist of or offspring from the parents.</u></em>
<em><u>Mendel performed a true breeding cross, meaning he crossed one homozygous recessive for a trait and one homozygous dominant for the trait. This gave rise to the heterozygous dominant offspring. </u></em>