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In humans, hair color is controlled by the interaction of two genes. The same pigment, melanin,...

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Biology

In humans, hair color is controlled by the interaction of twogenes. The same pigment, melanin, is present in chestnut-haired andblond-haired people, but chestnut people have much more. Brown hair(B) is dominant of blonde (r). Feeling melanin depends on anothergene. The dominant form of this second gene (M) allows thesynthesis of melanin; the recessive form (m) prevents suchsynthesis. Recessive homozygous (mm) are albinos. For each of thefollowing junctions mention the phenotype of the parents.

a. BBMM X BrMm

b. BrMm X BrMm

c. BrMm X rrmm

Answer & Explanation Solved by verified expert
3.7 Ratings (642 Votes)
The given data states that people with brownChestnut colored hair have more melanin than people with blond hair Synthesis of melanin depends on M gene where M denoted melanin presence    See Answer
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