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Biology, 05.06.2020 23:04 hixcatt05

1) “Melopsittacus undulatus” (leia-se os dois nomes em itálico), conhecido popularmente como periquito-australiano, pode apresentar plumagem nas cores azul, amarela, branca e verde. Essa característica é condicionada por dois pares de genes, com segregação independente, que têm interação entre si. A cor branca é condicionada por genes homozigotos recessivos. Indivíduos que apresentam em ambos os Ioci pelo menos um dos alelos dominantes são verdes. Quando apresentam um um Ioci com genes recessivos e o outro com, pelo menos, um alelo dominante, são azuis ou amarelo. Do cruzamento de dois indivíduos duplamente heterozigotos, espera-se encontrar:

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1) “Melopsittacus undulatus” (leia-se os dois nomes em itálico), conhecido popularmente como periqui...

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