Which of the following best describes the definition of a gene?
A. the protein product that genetic material produces
B. genetic information that produces a product, either proteins or RNA
C. a section of DNA that produces a single protein product
D. a collection of polypeptides that fold to form a complex protein
Answer: B
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To detect immunoglobulin M (IgM) antibodies in an acute phase, blood should be collected in _____ days after the onset of infection
a. 2 to 5 b. 5 to 7 c. 7 to 14 d. longer than 21
Interphase would include all of the following EXCEPT
a. G1. b. daughter cells. c. S. d. G2. e. mitosis.
Proteins are often regulated by phosphorylation by enzymes called
a. protein phosphatases. b. phosphoproteases. c. protein phosphorylases. d. protein kinases.
Some general evolutionary change trends in animals include:
a. lower surface area to volume ratio, radial symmetry, mutualism with photosynthetic organisms. b. larger body size, bilateral symmetry, and growth by continuous addition to skeletal elements. c. bilateral symmetry, chitinous cell walls, ability to digest cellulose. d. radial symmetry, motility, filter feeding. e. greater surface area to volume ratio, radial symmetry, diffusion to move nutrients in the body.