Based on morphology and gene sequencing data, it appears that the closest living relative of the first flowering plants
is ____.
a. Magnolia grandiflora
b. Illicium floridanum
c. Nelumbo nucifera
d. Archaefructus sinensis
e. Amborella trichopoda
ANSWER: e
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Which of the following is true of the Sanger sequencing method?
A. It requires an RNA template to copy. B. It incorporates dNTPs using an RNA polymerase. C. It requires a primer for the polymerase; the primer is radiolabelled so the sequences generated can be visualized. D. It requires chain terminating ddNTPs which lack a 2'OH and are thus unable to form a bond with the next nucleotide. E. The sequencing reaction products are separated by affinity chromatography.
Which of the following concepts explains why the wings of a chicken and a robin are different?
a. homologous structure b. analogous structure c. modern synthesis d. microevolution
Sources for a thickening, emulsifying agent found
in ice cream, salad dressing, beer, cough syrup, and cosmetics are a. diatoms. b. ferns. c. brown algae. d. green algae. e. none of these.
This class of antibodies is first to appear after infection, activates complement, and causes cells to clump, encouraging phagocytosis.
A. IgG B. IgM C. IgE D. IgD