ANSWERS: 2
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In general this could be more complicated, but the given numbers make it easy. Exactly 25% (one-fourth) of the population has a certain trait (attached earlobes). If the alleles are called E for free earlobes (dominant) and e for fixed earlobes (recessive), and if all 4 combinations EE, Ee, eE, and ee are equally likely, then the recessive trait (ee) is expressed 25% of the time. Basic Mendel. This occurs when E and e have the same frequency -- 50% each. So p = q = 50%.
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im sorry im totally unable to work it out!
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