In rabbits, black fur is dominant to white fur. If you cross a BB male with a Bb female, what are the possible genotypes and phenotypes of the offspring? What is the percent chance for each type?

50% chance for each type.

Explanation:

The Law of dominance states that a trait is represented by 2 contrasting factors of a gene in a heterozygous individual while the homozygous individual carries 2 copies of the same factors. Thus, the genotype of the heterozygous rabbit will be Bb and the homozygous recessive rabbit will be BB. The Law of segregation states that the 2 factors for a trait, present together in a heterozygous individual (Bb), do not get mixed and are delivered and separated by singly during the process of gametogenesis.

Thus, the heterozygous individual will produce 2 types of gametes: 50% gametes with “B” and 50% with “b”. The homozygous recessive individual will make all gametes with the B allele only. Fertilization of gamete with B allele from a recessive parent with that carrying B allele from the heterozygous parent will produce homozygous recessive progeny (BB) not “Bb”.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

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