Which one of the following steps in the breakdown of glucose can occur without oxygen?
A) glycolysis
B) the preparatory step
C) the citric acid cycle
D) the electron transport system
E) both the citric acid cycle and the electron transport system
A
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Which sequence of events CORRECTLY describes the initiation and elongation steps of translation in prokaryotic cells?
(1) initiator tRNA binds start codon on mRNA (2) small ribosomal subunit binds to mRNA (3) large ribosomal subunit binds (4) tRNA entry and peptidyl transfer reaction (5) translocation of ribosome and release of tRNA A. 1, 2, 3, 4, 5 B. 1, 2, 3, 5, 4 C. 1, 3, 2, 4, 5 D. 2, 3, 1, 5, 4 E. 2, 1, 3, 4, 5
An individual with Turner syndrome has no Barr bodies
Indicate whether the statement is true or false
When an enzyme linked receptor is activated, a conformational change activates the extracellular kinases. Indicate whether the statement is true or false
In the comparison of a DNA molecule to a twisted ladder, the rungs (footholds) of the ladder are
A) nitrogenous bases linked together. B) nitrogenous bases linked to phosphate. C) deoxyribose linked to sulfate. D) the backbones of the molecule. E) deoxyribose linked to phosphate.