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in a species of mouse, brown fur (b) is dominant over white fur (b) if a heterozygous brown mouse is
crossed with a white-colored mouse, what would be true of their possible offspring?
100% bb
25% bb, 25% bb, and 50% bb
50% bb and 50% bb
75% bb and

50% Bb and 50% bb

Explanation:

       B       b

b     Bb     bb

b     Bb     bb

therefore the genotype percentage for Bb: bb is 50:50%

the phenotype is 2 brown: 2 white

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: