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Mon 11 May, 2015 10:46 pm
In humans, two recessive traits, widow’s peak and free-hanging earlobes, are coded by independent genes located on different chromosomes. A man with a widow’s peak and attached earlobes (whose father has free-hanging earlobes) has children with a women without a widow’s peak (whose father had one) and free-hanging earlobes. What is the genotypic and phenotypic ratio of their possible children?