If black fur is dominant it would have to be B and the white fur is b. so if it is BB x bb you can use the punnet square and you would get all heterozygous offspring
D.
A fixed allele is homozygous within a population so D should be the correct answer.
Hope this helps!
Answer:
Independent variable
An
independent variable is a condition in a scientific study that is changed or
manipulated to test the effects on the dependent variable. The experimenter
controls the value of independent variable and its value represent inputs or
causes like potential reason for variation.
Additionally, there are
tendencies that independent variables are included in a scientific study especially
if the experimenter has no intention to test their effect directly.
Water-soluble is when something is able to dissolve in water.