Mendel took tall pea plants and short pea plants and produced `F_(1)` progeny through cross fertilisation. What did Mendel observe in the `F_1` progeny ?

Explanation

To answer the question about what Mendel observed in the F1 progeny after cross-fertilizing tall and short pea plants, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding the Parent Plants**:
- Mendel started with two types of pea plants: tall (dominant trait) and short (recessive trait).
- The tall plants are represented by the allele 'T' (dominant) and the short plants by 't' (recessive).

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