Question

Tall red flowerd plant crossed with dwarf plant F1 crossed with dominant parent what is the phenotypic ratio

Answer 1

$\huge\mathfrak{Answer:-}$

⭕ When we cross pure bred tall red flowered plant with pure bred dwarf red flowered plant, only tall red flowered plant will be produced in the first fillial generation.

⭕When we will try to produce second generation from first generation plants we will observe that :-

⭕ 75% of plants will be tall and 25% of plants will be dwarf.

⭕ 3 plants will be tall and one will be dwarf. Phenotypic ratio will be 3 :1.