in guinea pigs, black fur is dominant over white fur.how could the pig test if is homozygous or heterozygous?

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in guinea pigs, black fur is dominant over white fur.how could the pig test if is homozygous or heterozygous?

2006-12-04 12:46:27 · 1 answers · asked by rose 1 in Science & Mathematics ➔ Biology

1 answers

breed it with a homozygous white guinea pig.

If:
Unknown pig

B(black) B(black)

Known b Bb (black) Bb(black)
b Bb(black) Bb (black)

therefore, if the black pig is homozygous black, all babies in the first generation will be black

and if:

Unknown pig
B b

Known b Bb(black) bb(white)
b Bb(black) bb(white)

Therefore, you know that if you mix a black guinea pig with a white guinea pig, and you get any white "piglets", you have a black heterozygous guineapig.

2006-12-04 12:57:35 · answer #1 · answered by George B 3 · 0⤊ 0⤋