The somatic subdivision of the vertebrate nervous system would innervate which of the following?
a. intestinal muscles
b. liver
c. heart
d. pancreas
e. skeletal muscles
E
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Which land biome covers the largest proportion of the Earth?
a. Desert b. Grasslands c. Tundra d. Coniferous forests e. Deciduous forests
In the sequence of events during translation, what is the next step after an amino acid on the tRNA in the P site is linked to an amino acid on the tRNA in the A site?
A) The small ribosomal subunit attaches to the mRNA. B) The tRNA is released from the A site. C) The tRNA in the A site moves to the E site. D) The ribosome shifts down the mRNA by one codon. E) A tRNA binds to the start codon, and the large ribosomal subunit joins the ribosome.
In a sickled red blood cell, what do the
hemoglobin molecules do?
a. repel each other b. stick together c. fracture and release their contents into the cytoplasm d. create holes in the cell membrane e. more than one of these
Eukaryotic DNA molecules have
a. no proteins. b. small amounts of protein at each end. c. large amounts of protein at each end. d. small amounts of protein dispersed among them. e. large amounts of protein around which DNA is wound.