* Monohybrid: A monohybrid refers to an individual or organism that is heterozygous for a single trait. This means they have two different alleles (versions of a gene) for that trait.
* Second Generation (F2): The F2 generation refers to the offspring produced by crossing two individuals from the F1 generation (the first generation of offspring from a cross).
Here's how it breaks down:
1. Parental Generation (P): You start with two parent plants that are homozygous for different alleles of a single trait (e.g., one homozygous dominant for tallness (TT) and one homozygous recessive for shortness (tt)).
2. First Filial Generation (F1): When you cross these parents, all the offspring (F1) will be heterozygous (Tt) for that trait. These F1 plants are the monohybrids.
3. Second Filial Generation (F2): When you self-fertilize two F1 plants (Tt x Tt), you get the F2 generation, which will have a phenotypic ratio of 3:1 (3 tall plants and 1 short plant).
In summary: While the F2 generation is produced through self-fertilization, it is not a monohybrid. The F1 generation is the generation that consists of monohybrid individuals.
