Question

2.Black fur(B) in guinea pigs is dominant over white fur(b). Find theprobability of an offspring with the same phenotype as its parents in across between a homozygous black and a heterozygous black guineapig
.A. 0%,

25%B.25%,

25%C.50%,50%

D.75%, 25%

E.100%, 0%

Answer 1

Answer:

Option d: black 75%, white 25%

Explanation:

The cross is between a homozygous black and a heterozygous black guinea pig

Parents gen. BB x Bb

F1 generation BB Bb Bb bb

The probability of an offspring with the same phenotype as its parents is

Genotype: BB - 25% and Bb - 50%, bb-25%

Phenotype: black 75%, white 25%