In a monohybrid cross, two individuals are bred to observe the inheritance of a single trait, which is typically represented by two alleles. In the case of black angus cattle, black is typically considered the dominant phenotype, while red is recessive. When a homozygous black (BB) cattle is crossed with a heterozygous black (Bb) cattle, the offspring will inherit one allele from each parent.
The genetic possibilities for this cross would be:
This cross can be illustrated with a Punnett square, which demonstrates the potential genetic combinations of the offspring. The expected genotypic outcomes would be:
Both of these genotypes will exhibit the black phenotype since the black allele is dominant. Therefore, the resulting phenotypic ratio for the offspring of this monohybrid cross would be:
However, if the question is referencing a different parental combination, such as two heterozygous black cattle (Bb x Bb), then the expected phenotypic ratio would change, reflecting the