Wharthogs on Planet Zeta are either white or purple. A pure-bred male white Whar

Question

Wharthogs on Planet Zeta are either white or purple. A pure-bred male white Wharthog was mated with a pure-bred female purple Wharthog. They had ninety progeny, all of whom were purple. [Wharthogs are very prolific, especially in the special atmosphere on Planet Zeta.]

P white X purple

F1 all purple (ninety total)

F2 900 purple 700 white

The ninety F1 progeny were randomly interbred and produced a total of 1600 F2 progeny. Nine hundred of these F2 progeny were purple and 700 were white.

What are the genotypes of the P and F1 generations?

Explanation / Answer

Answer:

Purple: PP (dominant)

White: pp (recessive)

Parents-------------PP(purple) x pp (white)

F1--------------------------Pp (purple)

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