Understanding the Terms:
* Dominant: The dominant allele (in this case, 'B' for black hair) masks the recessive allele.
* Recessive: The recessive allele (in this case, 'b' for white hair) only shows up if there are two copies of it.
Possible Parent Genotypes:
* Parent 1 (Black):
* BB: Homozygous dominant (will always produce black offspring)
* Bb: Heterozygous (has both black and white alleles, will produce mostly black offspring)
* Parent 2 (White):
* bb: Homozygous recessive (will always produce white offspring)
Possible Offspring Scenarios:
Let's look at the possible combinations for each parent pair:
1. Parent 1 (BB) x Parent 2 (bb):
* All offspring will be Bb (black). This is because they inherit a 'B' allele from the black parent and a 'b' allele from the white parent.
2. Parent 1 (Bb) x Parent 2 (bb):
* 50% of offspring will be Bb (black).
* 50% of offspring will be bb (white).
Punnett Square:
A Punnett square is a helpful tool for visualizing these crosses:
| | b | b |
|----------|-----|-----|
| B | Bb | Bb |
| b | bb | bb |
This shows the possible combinations of alleles for each offspring.
To answer your question, you need to tell me the genotypes of the parent guinea pigs!