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Cystic fibrosis is a recessive gene disorder. The pedigree chart for a family known to have cystic fibrosis is shown

What percentage of the offspring either are carriers or have observable disease?

25%
50%
75%
100%

ONLY ANSWER IF YOURE SURE Cystic fibrosis is a recessive gene disorder The pedigree chart for a family known to have cystic fibrosis is shown What percentage of class=

Respuesta :

The answer is 100%. Three are observable, but the fourth is just a carrier.
caldrete

Answer: D. 100%.

Explanation:

Cystic Fibrosis is an Autosomic Recessive Disorder. The family pedigree chart shows that the Mother is a Carrier (Aa) and the Father has the disease (aa).

The offspring of both parents is affected by 100%.

75% have the disease (2 female, 1 male)

25% are carriers (1 male)

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