Melanin synthesis in the eye is determined by 2 genes. The O…
Melanin synthesis in the eye is determined by 2 genes. The OCA2 gene controls melanin synthesis; PP or Pp = brown color; pp = blue color. The HERC2 gene controls (“switches on”) the OCA2 gene; CC or Cc = brown color; cc = blue color. Therefore, a homozygous recessive genotype for either gene, pp or cc, results in blue eyes). What is the probability of 2 brown-eyed parents heterozygous for both genes having a blue-eyed child? [answer1]
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