In guinea pigs, black hair (B) is dominant to brown hair (b) and short hair (H) is dominant to long hair (h). A black, short-haired guinea pig (BBHH) is crossed with a brown, short... In guinea pigs, black hair (B) is dominant to brown hair (b) and short hair (H) is dominant to long hair (h). A black, short-haired guinea pig (BBHH) is crossed with a brown, short-haired guinea pig (bbHh). What is the phenotype ratio that will be seen in the offspring?
Understand the Problem
The question is asking for the phenotype ratio of offspring produced from a genetic cross between a black, short-haired guinea pig and a brown, short-haired guinea pig. It involves understanding dominant and recessive traits related to hair color and length in guinea pigs.
Answer
8 black/short hair: 8 black/long hair
The phenotype ratio of offspring is 8 black/short hair: 8 black/long hair.
Answer for screen readers
The phenotype ratio of offspring is 8 black/short hair: 8 black/long hair.
More Information
A cross between BBHH and bbHh results in all offspring having at least one B allele (producing black fur) and a split between phenotypes for hair length.
Tips
Ensure accurate identification of all possible gametes, especially with heterozygous alleles.
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