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.
A
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What is considered to be the primary method of succession in the marine intertidal zone?
A. facilitation. B. submission. C. logistic growth. D. tolerance. E. inhibition.
A muscle fiber contracts by a sequence of events initiated by the binding of acetylcholine to its receptor. Which of the following is the correct sequence?I - The calcium-troponin complex pulls tropomyosin away from the myosin-binding sites of actin.II - The freed-sites of actin bind to myosin to form cross-bridges.III - Calcium ion binds to the troponin.
A. I, II, and III B. III, II, and I C. I, III, and II D. II, III, and I E. III, I, and II
Which disease was probably the first documented connection between a microscopic organism and a disease in humans?
a) Scabies b) Pediculosis c) Candidiasis d) Sporotrichosis
The division between the central nervous system and the peripheral nervous system is based on the anatomical differences between cells in the two locations.
Answer the following statement true (T) or false (F)