Question

Why is the F₁ progeny always of tall plants when a tall pea plant is crossed with a short pea plant?

Answer 1

F₁ progeny:

1. When distinct parents are crossed in a controlled manner, the first generation offspring is called the F₁ generation.
2. It is also called the first filial generation.
3. The F₁ generation always contains two alleles.
4. One allele is tall and the other is a dwarf.
5. The tall progeny is present in heterozygous conditions and the tall trait is dominant that expresses itself and suppresses the expression of the short trait.