Two Unaffected Parents Each Have a Parent with the Same

question 36

Multiple Choice

Two unaffected parents each have a parent with the same recessive condition and they want to know the chances that they will have a child who has the condition. What do you tell them?

• A) the chance that their child will be affected is 0%
• B) the chance that their child will be affected is 100%
• C) the chance that their child will be affected is 25%
• D) the chance that their child will be affected is 75%
• E) the chance that their child will be affected is 50%

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