How does non-disjunction cause down syndrome

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1. Marfan syndrome is a dominant disorder. In the cross Mm x mm, what percentage of the children are expected to inherit the disorder? Explain your answer.

2. How does non-disjunction cause Down syndrome? What is specifically happening in which process to cause this disorder?

3a. Labrador retrievers coat color is controlled by two genes. For the cross bbEe x BbEe, list the gametes produced by each parent.

3b. What color puppies will this cross produce?

3c. List the percentage for each color from this cross.

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Reference no: EM13821556

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