Which of these serves in the transition from glycolysis to the Krebs cycle?
a. acetyl-CoA formation
b. conversion of PGAL to PGA
c. regeneration of reduced NAD+
d. oxidative phosphorylation
e. substrate-level phosphorylation
A
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_________________ is a type of horizontal gene transfer during which genetic information is transferred from one bacterium to another via a pilus
A. Transduction B. Transformation C. Transferation D. Conjugation E. Conduction
In the following sequence of DNA, the italicized base has been mutated. What type of mutation is this?
5' - G A T C T C C G A A T T - 3' original strand 5' - G A T C T C C C A A T T - 3' mutated strand A. Transition B. Transversion C. Neither
DNA replication and gene expression in archaeans more closely resemble eukaryotic cells than the same processes in bacteria. However both Bacteria and Archaea are prokaryotic. What does this suggest?
A. Eukaryotic cells are descended from modern Archaeans. B. Bacterial cells are not related to Archaeans. C. Eukaryotic cells shared a more recent common ancestor with Archaeans than with bacterial cells. D. There must have been 2 origin events, one producing the bacteria and the other producing Archaeans and eukaryotic cells. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about phylogenetic trees? How does it relate to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
All arteries, with the exception of the __________, contain oxygen-rich blood
a. aorta b. carotid arteries c. coronary arteries d. pulmonary arteries e. mesenteric arteries