Grow taller. How do you explain why the tt plant is short?
Incomplete Dominance
Let's say you had the following scenario...
What we see in class:
Let R = red flowers and r = white flowers, and that R and r are incompletely dominant to each
other.
What it means, on a protein level:
The R allele represents a working copy of Protein R. Protein R's job is to help make red color.
The r allele represents a mutated, nonfunctional copy of Protein R. Since this version of the
protein doesn't work, there is no red color made and the flower is white by default.
A plant that is RR has two working copies of Protein R, so it gets a full dose of red color. A plant
that is rr does not have any working copies of Protein R. It can't make color at all, so it's white.
How do you explain why the Rr plant is pink?