The pedigree traces red-green color blindness.
Lisa and Monica are half-filled circles. Sam, Bella, Joshua, and Tim are filled-in shapes.
Which family members have red-green color blindness?
a.) Sam, Tim, Bella, and Joshua
b.) Lisa and Monica
c.) Ben, Jenny, Mike, Carol, Katie, and Chris
d.) Sam, Joshua, and Tim
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Option a. Filled in shapes means one who is diseased.
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