# During an experiment, a scientist crosses a pea plant that has purple flowers with a pea plant that has white flowers. The plants that result from this cross in the F1 generation have both purple and white flowers. What can the scientist conclude?

##### 1 Answer
Jun 27, 2017

That the dominant colour was in a heterozygotic plant, and the recessive in a homozygotic plant (by necessity).

#### Explanation:

Let's say the dominant colour is purple (P) and the recessive colour is white (w).
The purple plant may be $P P \mathmr{and} P w$
The white plant can only be $w w$

Then we have $P w \times w w \to P w \mathmr{and} w w =$flowers of both colours

A homozygotic purple would only produce purple flowers:

$P P \times w w \to P w =$ purple