What is the vector used in gene therapy?
a. bacterial plasmids
b. lipids
c. genetically engineered viruses
d. single nucleotides
e. more than one of these
E
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In skeletal muscle, an action potential leads directly to ________
a. the binding of actin with myosin b. the detachment of troponin from actin c. flexure of the already bound myosin heads d. the release of calcium from the sarcoplasmic reticulum
Water surface tension is caused by __________ bonds. Fill in the blank(s) with the appropriate word(s)
This illustration shows the mechanism of
a. simple diffusion. b. bulk flow. c. endocytosis. d. facilitated diffusion. e. an active transporter.
Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation.
Answer the following statement true (T) or false (F)