Compare and contrast REM and non-REM sleep. What will be an ideal response?
Both types of sleep are changes in electrical activity of the brain as well in physiological
functions that occur during sleep. REM sleep is characterized by rapid movement of the eyes
and desynchronized brain waves; non-REM sleep is characterized by theta and delta waves,
and these eye movements are lacking. REM sleep is accompanied by increases in body
movement, heart rate, breathing, blood pressure, metabolic rate, and body temperature; but in
non-REM sleep all these processes decrease.
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The target of a site-specific recombinase consists of:
A. one short, asymmetric core sequence; two inverted-repeat binding sites; and one cleavage site. B. one short, asymmetric core sequence; two direct-repeat binding sites; and one cleavage site. C. two short, asymmetric core sequences; two inverted-repeat binding sites; and one cleavage site. D. one short, palindromic core sequence; two inverted-repeat binding sites; and one cleavage site. E. one short, palindromic core sequence; two direct-repeat binding sites; and one cleavage site.
Immediate source of energy for organisms:
a. carbohydrates b. proteins c. fat
Which of the following is associated with dental caries?
A. Lactococcus lactis B. Streptococcus mutans C. Enterococcus faecalis D. Streptococcus pneumoniae
The most common DNA-binding motif is the
A. leucine zipper. B. zinc finger. C. nonhelical zipper. D. homeodomain. E. helix-turn-helix.