The white spots can range in size and they decorate the wings. At the upper corner of the top set of wings are orange spots. The underside of the monarch butterflies' wings can be seen when the butterfly is at rest or when it is feeding on a flower. Instead of bright orange, the underside is more drab and orange-brown. Males and females can be told apart by looking at the top of their hind wings.
Freebase(0.00 / 0 votes)Rate this definition: A genetic disorder is an illness caused by one or more abnormalities in the genome, especially a condition that is present from birth. Most genetic disorders are quite rare and affect one person in every several thousands or millions.
1. hereditary disease-a disease or disorder that is inherited genetically. congenital disease, genetic abnormality, genetic defect, genetic disease, genetic disorder, hereditary condition, inherited disease, inherited disorder. disease-an impairment of health or a condition of abnormal functioning.