EVERYDAY SCIENCE

Detailed explanation-1: -An F1 hybrid (also known as filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where the term F1 crossbreed may be used. The term is sometimes written with a subscript, as F1 hybrid.

Detailed explanation-2: -The offspring of the P parent generation are called the F1 (for filial, or “offspring”) generation. The offspring of F1 are called the F2 and F2 offspring are called F3 and then F4, F5, and so on.

Detailed explanation-3: -F1 generation is the first filial generation, whereas F2 generation is the second filial generation obtained by crossing the F1 generation.

Detailed explanation-4: -In basic terminology, the F1 generation is the first generation of offspring produced by a set of parents. The ‘F’ in F1 stands for ‘filial. ‘ So in short, F1 means ‘first filial generation’.

Detailed explanation-5: -When the gametes join in the zygotes of the F1 generation, each individual receives one dominant allele and one recessive allele (Yy), and thus all of the F1 generation shows the dominant phenotype (e.g. yellow peas). This is the uniform phenotype observed for the F1 generation.