Autosomal dominant condition occurs when alleles of genes present on chromosomes in the autosomes (somatic) mask the effect of the other allele.
They can produce a light brown kid and the chances of producing this is 50%.
Let light brown be (BB or Bb) and black be (bb)
Parents : B b x b b
Offspring genotype: Bb bb
Ratio: 1 : 1 (50%)
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