Punnet square and genetics help?

I was absent when the teacher went over it need it explained how to solveIf a rat with black fur (BB) is crossed with a rat having white fur (bb), all

I was absent when the teacher went over it need it explained how to solve

If a rat with black fur (BB) is crossed with a rat having white fur (bb), all of the resulting offspring in the F1 generation are brown (Bb). What will the genotypes and phenotypes and genotypic and phenotypic ratios be, if these offspring (F1¬¬'s) are allowed to mate with each other (i.e. the F¬2¬ generation)?

or:I was absent when the teacher went over it need it explained how to solveIf a rat with black fur (BB) is crossed with a rat having white fur (bb), all of the resulting offspring in the F1 generation are brown (Bb). What will the genotypes and phenotypes and genotypic and phenotypic ratios be, if these offspring (F1\u00ac\u00ac's) are allowed to mate with each other (i.e. the F\u00ac2\u00ac generation)?

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