Why Is It Essential That Genetic Markers Used in Mapping

question 34

Multiple Choice

Why is it essential that genetic markers used in mapping disease genes be polymorphic?

• A)If the marker isn't polymorphic,its position cannot be known.
• B)If the marker isn't polymorphic,it cannot be physically linked to a gene associated with human disease.
• C)If the marker isn't polymorphic,then it will not be inherited in any predictable manner.
• D)If the marker isn't polymorphic,then it's impossible to use genetic mapping techniques to establish an association between the marker and the disease gene.

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