Monohybrid cross – genotypic ratio

2016 1 question

1. 1 Principles of Inheritance and Variation
   A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the $F_1$ plants were selfed, the resulting genotypes were in the ratio of
   A 1 : 2 : 1; tall heterozygous : tall homozygous : dwarf B 3 : 1; tall : dwarf C 3 : 1; dwarf : tall D 1 : 2 : 1; tall homozygous : tall heterozygous : dwarf
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