You cross a plant with red flowers with a plant with white flowers. Both plants are pure-breeding. All the offspring have pink flowers. What allele relationship does this display?
1 Answer
Jun 1, 2016
Incomplete dominance.
Explanation:
If the two flowers cross and are both pure colors, then the offspring should be a mix between red and white flowers—depending on dominance and recessiveness. If the offspring is pink (a mix of red and white), then the offspring has incomplete dominance. Incomplete dominance occurs when one trait isn't dominant nor recessive over the other, so they have a mix of color. Here's a picture to better explain it:
As you can see, the parents are both dominant, but they have a pink offspring. Therefore, incomplete dominance has occurred.
