Reasoning from specific cases to general principles best describes:

__________ reveals that genomic imprinting can operate on the sex chromosomes

A) Cooley's anemia B) Marfan syndrome C) Homosexuality D) Fragile X syndrome

Nadine, an average-weight adult, gained a small amount of weight between the ages of 25 and 50. Nadine should

know that A) the weight gain is likely caused by a lack of physical activity. B) she is at high risk for heart disease. C) this is a normal part of aging, resulting from a drop in basal metabolic rate. D) the average woman gains between 2 and 5 pounds a year throughout early and middle adulthood.