Sporadic cancers ____
a. may develop when proto-oncogenes mutate to form tumor suppressor genes
b. may develop when tumor suppressor genes are over-expressed
c. are caused by benign tumors
d. are cancers that are not inherited
e. are less frequent than familial cancers
ANSWER: d
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Segments of DNA capable of moving from one area in the DNA to another are called
A. base analogs. B. intercalating agents. C. transposons. D. inverted repeats.
The site of new primary growth at the apex of a shoot is the
a. terminal bud. b. internode. c. axil. d. lateral bud. e. node.
Aldosterone stimulates the reabsorption of sodium ions here
A) proximal convoluted tubule B) glomerular capsule C) loop of the nephron D) distal convoluted tubule and collecting duct
The conversion of phosphoenol pyruvic acid (PEP) to pyruvic acid results in the production of an ATP. This reaction is an example of (substrate-level/oxidative/reductive) phosphorylation.
Fill in the blank(s) with the appropriate word(s).