If protein had been the genetic material, then what would Oswald Avery have observed in his experiments?
1.Bacterial extracts treated with proteinase would transform nonvirulent bacteria into the virulent strain.
2.
Bacterial extracts treated with proteinase would not transform nonvirulent bacteria into the virulent strain.
3.Bacterial extracts treated with DNAse would transform nonvirulent bacteria into the virulent strain.
4.Bacterial extracts treated with DNAse would not transform nonvirulent bacteria into the virulent strain.
A. Statement 1
B. Statement 2
C. Statements 1 and 3
D. Statements 2 and 3
E. Statements 2 and 4
D
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Which statement best describes the action of polypeptide growth factors?
A) They bind to intracellular receptors and trigger intracellular signal transduction pathways. B) They bind to cell surface receptors and trigger intracellular signal transduction pathways. C) They bind to cell surface receptors that phosphorylate cyclins. D) They bind an intracellular receptor forming a complex that then acts as a transcription factor.
Lamellae that are not part of the osteon. Some fill gaps between forming osteons; others are remnants of osteons cut by bone remodeling.
What will be an ideal response?
Which of the following is not a product of the breakdown of dietary proteins for energy?
A. Amino acids B. Ammonia C. Pyruvate D. Acetyl-CoA E. Mitrate
Antimicrobial agents that damage nucleic acids also affect
A) the cell wall. B) the cell membrane. C) the viral envelope. D) endospores. E) protein synthesis.