Suppose that in sheep, a dominant allele B produces black hair and a recessive allele b produces whi

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Suppose that in sheep, a dominant allele B produces black hair and a recessive allele b produces white hair. If you saw a black sheep, you would be able to identify

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Sol.(a) [Key Concept: Phenotype vs Genotype — Observable Trait] If you see a black sheep, you can only identify its PHENOTYPE (black hair) — what it looks like. You cannot identify its genotype because a black sheep could be either BB (homozygous dominant) or Bb (heterozygous). Without further testing (test cross), you cannot determine which. Similarly, you cannot determine the genotypes of the parents without additional information about the parents' ancestry.

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