Jill is doing an experiment on the movement of pill bugs. She will place the pill bugs on flat surfaces covered with
different materials to see how the texture of each material
affects the bugs' movement.
How can Jill use her imagination in this experiment?

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other