The movement of materials already in the phloem is described as ____
a. translocation
b. declining pressure flow
c. cohesion-tension
d. active transport
e. transpiration
ANSWER: a
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Which of the following hormones is NOT
produced by either lobe of the pituitary gland?
a. prolactin b. oxytocin c. calcitonin d. ACTH e. GH
The expression of different phenotypic traits for a given genotype under different environmental conditions is referred to as
A) acclimation. B) phenotypic plasticity. C) developmental plasticity. D) habituation.
An infection caused by an opportunistic microbe after a primary infection has weakened the host's defenses is a ________ _________.
Fill in the blank(s) with the appropriate word(s).
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. Jane and John have a child who has Type 1 fucosidosis. What is the probability that their next child will also have the disease?
A. 1/2 B. 4/4 or 100% C. 1/4 D. No chance E. 3/4