If mendel had crossed a true breeding dominant plant with a true breeding recessive plant, in which of the three generations is the recessive trait visible? f1 generation p generation f1 generation and f2 generation p generation and f2 generation

The correct answer is P generation and generation.

It is because all members of the generation will be heterozygous (Aa) and hence they all will show the dominant phenotype.

generation is produced by the self pollination of the generation.

The generation shows the phenotypic ratio of 3:1 (dominant: recessive) and genotypic ratio of 1:2:1 (AA:Aa:aa)

as many times as you want