When a tall pea plant was selfed, it produced one-fourth of its progeny as dwarf. Explain with the help of a cross.

Explanation

To explain why a tall pea plant produces one-fourth of its progeny as dwarf when selfed, we can use a genetic cross. Let's break this down step by step.

### Step 1: Identify the Genotypes
The tall pea plant is likely heterozygous for the trait, meaning it has one dominant allele (T) for tallness and one recessive allele (t) for dwarfness. Thus, its genotype can be represented as Tt.

### Step 2: Set Up the Cross
When this heterozygous tall plant (Tt) is self-fertilized, it will be crossed with another tall plant of the same genotype (Tt).

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