Near the level of vertebra L4, the aorta branches to form the ________ arteries
A) common carotid
B) common iliac
C) femoral
D) tibial
E) popliteal
Answer: B
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Polydactyly is an example of a trait that is both ________ and variably expressive.
A. incompletely penetrant B. multifactorial C. pleiotropic D. completely penetrant
The last stage in bone repair is ________
A) Hematoma formation B) Soft callus formation C) Remodeling D) Bony callus formation
Local passive current flow decreases with distance because
a. ion pumps which drive current flow run out of energy (ATP) as they drift from the stimulus site. b. current leakage across the membrane attenuates current available for intracellular current flow. c. as it gets away from the active zone, the membrane fluidity decreases and prevents influx of booster current. d. of all of these reasons. e. of none of these reasons.
The mRNA start codon, AUG, matches up with a tRNA anticodon, __________.
A)GUA B)GAC C)UAC D)ATG E)CAU