The human papillomavirus (HPV) carries a gene that functions as an oncogene by inactivating the p53 protein. The fact that the loss of p53 function is oncogenic suggests that
A) p53 normally functions to prevent uncontrolled cell division.
B) p53 is a proto-oncogene.
C) the HPV protein activates transcription of p53.
D) p53 functions at origins of replication in DNA.
A) p53 normally functions to prevent uncontrolled cell division.
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If a living plant cell is placed in a beaker with a solution that has a ? value lower than the ? value of
the plant cell, the plant cell will
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The human lymphatic system consists of all of the following structures except the
A) thymus. B) tonsils. C) spleen. D) pancreas.