Which of the following statements best describes the function of the xylem?
A. It transports water from the roots to the stems and leaves.
B. It transports food between the leaves and the roots.
C. It transports minerals from the roots to the stems and leaves.
D. It transports both water and minerals from the roots to the stems and leaves.
E. It transports water from roots to leaves and food from leaves to roots.
D. It transports both water and minerals from the roots to the stems and leaves.
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The HIV genome contains nine genes, and therefore encodes just nine proteins
Indicate whether the statement is true or false
Type 1 fucosidosis is a rare human disease. Patients cannot hydrolyze the disaccharide fucose, and as a result have severe neurological decline and die by age 6. The disease is due to a defect in the gene that encodes the lysosomal enzyme that breaks down fucose (?-1-fucosidase), and is inherited in an autosomal recessive manner. Which of the following statements is ACCURATE about Type1
fucosidosis? A. Ff and ff individuals will have the disease B. Ff individuals will have the disease, because anyone with the mutant allele will have the disease C. Ff individuals make enough ?-1-fucosidase to break down fucose and do not exhibit the condition D. Two carriers for Type I fucosidosis have no chance of having a normal child E. Both Ff individuals will have the disease, because anyone with the mutant allele will have the disease AND two carriers for Type I fucosidosis have no chance of having a normal child
Blood flows from the right ventricle to the ________.
Fill in the blank(s) with the appropriate word(s).
Vlad, 28 years old, is a slender, jumpy man with eyes that seem to bulge out of their sockets. His heart rate is unusually fast. Which of the following conditions does Vlad most likely have?
A) Addison's disease B) acromegaly C) Cushing's syndrome D) Graves' disease