crosses a heterozygous black rabbit with a homozygous black rabbit.
The genotype of offspring (give a number of each genotype) Phenotype of offspring (give the color of the phenotype(s))
The genotypes of the offspring would depend on the specific genotypes of the parents. However, assuming that the heterozygous black rabbit has the genotype Bb and the homozygous black rabbit has the genotype BB, the possible genotypes and phenotypes of the offspring can be determined using Punnett square analysis.
The Punnett square for crossing Bb (heterozygous black) with BB (homozygous black) would look like:
B B
-------------------
B| BB BB
b| Bb Bb
From the Punnett square, it can be observed that there are two possible genotypes (BB and Bb) and two possible phenotypes (black) for the offspring.
If one parent is heterozygous black (Bb) and the other is homozygous black (BB), then the expected genotypes and phenotypes can be:
- Genotype: 2 BB (homozygous black) and 2 Bb (heterozygous black)
- Phenotype: All offspring would have the black color phenotype.
To determine the genotype and phenotype of the offspring, we need to understand the basic principles of inheritance and the genotypes of the parent rabbits.
Let's denote the heterozygous black rabbit as Bb (where B represents the dominant allele for black color and b represents the recessive allele for another color), and the homozygous black rabbit as BB (where both alleles are dominant for black color).
When these rabbits are crossed, they can produce two possible genotypes in the offspring: BB and Bb.
To determine the number of each genotype in the offspring, we need to consider the possible combinations of alleles. Here's a Punnett Square to illustrate this:
| B | b |
--------------------------------
B | BB | Bb |
--------------------------------
B | BB | Bb |
--------------------------------
From the Punnett Square, we see that there are two possible genotypes in the offspring, BB and Bb, with an equal probability of 50% each.
Regarding the phenotype of the offspring, since black color (represented by the dominant allele B) is the only option available, all the offspring will have a black phenotype.
In summary:
- Genotype of offspring: 50% BB, 50% Bb
- Phenotype of offspring: All black.