The nucleolus is the site of:
A. protein synthesis.
B. uncoiling and unraveling of chromosomes.
C. ribosome assembly.
D. lipid synthesis.
E. chromosome replication.
C
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What test measures the flexibility of the hamstring muscle and, to a lesser extent, the lower back muscles?
a. Total Body Rotation b. Shoulder Rotation c. Sit-and-Reach d. Repetition Maximum
When acetylcholine binds its receptor on the surface of a muscle cell, which of the following happens
next? a. G protein is activated. b. Tyrosine kinase is activated. c. Tyrosine is phosphorylated. d. A neurotransmitter crosses the synapse. e. A sodium gate opens.
The order of whorls from the flower's periphery to the center is:
a. sepals, petals, stamens, and carpels. b. carpels, petals, stamens, and sepals. c. petals, carpels, stamens, and sepals. d. sepals, carpels, stamens, and calyx. e. calyx, carpels, stamens, and sepals.
A harmless insect that looks like a dangerous one in order to fool its predators is an example of _______.
a) parasitism b) mutualism c) mimicry d) camouflage