Answer:
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)