In cystic fibrosis, two unaffected carriers can have a child with the disease. It is as common in boys as in girls. This disease is Select one:
a. X-linked dominant.
b. X-linked recessive.
c. autosomal recessive.
d. pleiotropic.
e. autosomal dominant.
c. autosomal recessive.
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The large intestine concentrates undigested material by
A. absorption of salts and water across the epithelial surface of the lumen. B. ingestion of excess salts and water by intestinal bacteria. C. transporting excess salts and water back to the small intestine for absorption. D. storing excess salts and water in the cecum.
Which of the following is a macronutrient needed by plants?
a. phosphorus b. iron c. manganese d. boron e. copper
Most adipose tissue is located
a. just beneath the skin. b. in the abdominal cavity. c. surrounding organs. d. in the digestive tract. e. in all of these locations
The ART that is employed exclusively to deal with male infertility problems is _____________
A. IUI D. ZIFT B. IVF E. more than one of these C. GIFT