Why is a legend necessary when constructing a pedigree that includes a health history?
A) Gender-altering surgeries require either the drawing of both male and female symbols for the same person or the use of a diamond instead of a circle or square.
B) When a pedigree includes more than three generations, the relationships of members in older (more remote) generations are less clear and must be explained.
C) The gender of individuals lost in the first trimester of pregnancy cannot be established.
D) Health problems do not have standard symbols.
Correct Answer:
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