You are examining a laboratory subject in which blood calcium levels are rising. Predict the consequences for this individual.
A. Blood parathyroid hormone levels would decrease.
B. Blood parathyroid hormone levels would increase.
C. Blood vitamin D (1,25 dihydroxyvitamin D) would be stimulated.
D. Blood calcium levels are not under control by hormones.
E. Vitamin D would be converted to vitamin E.
A. Blood parathyroid hormone levels would decrease.
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The sexual phase of Plasmodium is called a
A. sporozoite B. gametocyte C. merozoite D. plasmacyte E. anthracite
What is one feature of "engineered" plasmids that is helpful in the isolation and analysis of cloned DNA?
a. They can only handle DNA fragments of up to 10 kb. b. They are an integral part of all eukaryotic cells. c. They contain no genetic material of their own so that the cloned fragment is truly isolated. d. The presence of genes that allow transformed cells to survive on different media. e. The base sequence of one strand reads the same as its complement
The importance of enzymatic competition is that
A. different end products can be formed at different times when needed. B. it reduces the amount of enzymes in the cell to an optimum. C. it guarantees that all enzymes will form enzyme-substrate complexes. D. no substrates will go unchanged by an enzyme.
Malignant plasma cells exhibiting CD38, CD56, and CD138 are found in:
A. Waldenstrom macroglobulinemia. B. chronic myeloid leukemia. C. multiple myeloma. D. monoclonal gammopathy of undetermined significance