Sampson and Glein Topic question

 My ADI question centers around lab NTSA's Mendelian Genetics. The question is A two part question the first deals with a typical phylogenic cross.  Male platypus  with grey fur is mated with a female containing   the same phenotype.  From their their progeny  15 babies  are grey, 6 are black and 8 are white. The second deals with what factors

a.   What is the simplest explanation for the inheritance of these colors in platy-pie?

b.   What offspring would you expect from the mating of a grey male  and a black female ? (Translated from K-State Model 5 Genetics)

 I think the first model I would use  is a functional analysis model  to tackle the question. The temporal stage model allows students to delve deeper into the environmental  factors that effect species genetic drift. Did a group move into an area that was  hot causing them to have lighter fur coats or did a group move to an environment with a heavier soil causing them to develop more of a spoon bill or a more point bill for harder gravel. These would then be accompanied by more of a tree model to determine how the progeny's fur color evolved from the  parents.