The archea include which of the following?
a. extreme thermophiles
b. alga
c. protista
d. animals
e. all of these
A
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Match the type of microscopy with the appropriate characteristic.
A) uses a laser to view a single plane of a specimen B) detects electrons passing through a specimen C) light passes directly through specimen D) detects electrons deflected from the surface of the specimen E) shows specific molecules F) amplifies variations in density 1) Brightfield 2) Fluorescence 3) Phase-contrast 4) Confocal 5) Transmission electron microscopy 6) Scanning electron microscopy
The greater the polyglutamine expansion in the huntingtin gene (greater than 35 CAG trinucleotide repeats), the greater the chance for developing Huntington disease
a. True b. False Indicate whether the statement is true or false
Meteorites seem to be primarily composed of material very similar to the material in asteroids
a. True b. False Indicate whether the statement is true or false
Which of the following molecules is MISMATCHED with its source?
a. interferons ? virus-infected cells b. histamine ? mast cells c. lysozyme ? epithelial cells d. immunoglobulin ? B cells e. interleukins ? cytotoxic T cells