Ball-and-socket joints allow flexion, extension, rotation, abduction (moving away from the midline of the body) and adduction (moving toward the midline). Which of the following is(are) an example of a ball and socket joint?
A. the knee
B. the elbow
C. the hip
D. the joints between bones of the fingers
C
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The end of the nucleic acid chain that grows by adding more nucleotides is always the
A. 5 prime end. B. C terminal. C. N terminal. D. 3 prime end.
Life history patterns of guppies in Trinidad are a result of which natural selection force?
a. Competition differences in different streams. b. Predation differences in different streams. c. Temperature differences in different streams. d. Pollution differences in different streams. e. Salt concentration differences in different streams.
RNA in cells can serve as a
a. storage form of genetic information in nuclei. b. carrier of information from the nucleus to the cytoplasm. c. catalyst or enzyme. d. Both b and c
Answer the following questions true (T) or false (F)
1. The genome of all DNA animal viruses is replicated in the nucleus of the cell. 2. Bacteriophage release is a gradual process in which small numbers are released at a time. 3. Bovine spongiform encephalopathy is an example of a prion disease.