In the DNA damage response,
A. repair enzymes replace mismatched nucleotides in RNA.
B. repair enzymes replace mismatched nucleotides in DNA.
C. repair enzymes replace mismatched amino acids in protein.
D. more than one codon encodes one type of amino acid.
Answer: B
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The lateral horns of the spinal cord contain
A. axons of sensory neurons and interneuron cell bodies. B. axons of sensory and motor neurons. C. axons of motor neurons and interneuron cell bodies. D. axons of interneurons. E. cell bodies of autonomic motor neurons.
Axons of the corticospinal tract cross the brainstem at the
A. middle cerebellar peduncle of the pons. B. decussation of the pyramids in the medulla oblongata. C. primary fissure of the cerebellum. D. cerebral aqueduct of the midbrain. E. hypoglossal canal.
The allantois enlarges to form the ________.
A. urethra B. urinary bladder C. kidney D. ureter E. gonads
Costal facets are found on the ________ vertebrae
A) sacral B) lumbar C) cervical D) thoracic