Monoclonal antibodies are obtained from
A. human serum.
B. animal serum.
C. hybridomas.
D. human B cells in culture.
E. both human and animal serum.
Answer: C
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A) auxin migrates to the lower part of the stem due to gravity B) there is more auxin on the light side of the stem C) auxin is destroyed more quickly on the dark side of the stem D) auxin is found in greatest abundance on the dark side of the stem E) gibberellins produced at the stem tip cause phototropism
In Drosophila, a gynandromorph, which is composed of equal parts of male and female tissue, results from
A) an XX female losing one X chromosome during the first mitotic division after fertilization. B) an egg carrying an X chromosome fertilized by a Y-carrying sperm. C) a normal egg fertilized by both an X-carrying sperm and a Y-carrying sperm. D) the fusion of a female embryo with a male embryo.
Based on the data in the Amino Acid Identity Table, which two members of the human globin gene family are the most divergent?
A) a1 and ß B) ? and ß C) a1 and a2 D) a1 and G?
Dinoflagellates that exist endosymbiotically within a variety of marine invertebrates are called ________.
A. endotrophic B. endoflagellates C. parasites D. zooxanthellae