In mice, the allele for BROWN FUR (BB or Bb) is completely dominant over the allele for white fur (bb). In a cross where both parents have white fur, what is the probability for the following genotypes and phenotypes? Please answer in whole numbers.

The process of alleles, even if both are bb there is a very very low chance of it being Bb, but completely impossible of being BB.

Explanation:

The allele table is not 100% correct all the time. just most.

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).