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Genetica_exercicios resolvidos - Prof Iva

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Resposta questão 20: D<br />

queratose : QQ ou Qq_<br />

normal : qq<br />

O casal tem queratose, mas ambos possuem um dos<br />

genitores com pele normal, então ambos são heterozigotos<br />

Qq.<br />

Q q<br />

Q QQ Qq<br />

q Qq qq<br />

A probabilidade de cada filho ter<br />

queratose é de 3/4.<br />

Então:<br />

¾ x ¾ x ¾ x ¾ = 81/256 = 31,6%

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