A bacteriophage is a
A) bacterium that infects a virus.
B) virus that infects a bacterium.
C) particle made up of viral nucleic acid surrounded by bacterial protein.
D) particle made up of bacterial nucleic acid surrounded by bacterial protein.
B) virus that infects a bacterium.
You might also like to view...
Which of the following is a common energy currency in living cells that powers most living organisms?
A. Heat B. Sunlight C. ATP D. Phosphate
The event that occurs when allolactose levels increase in E. coli is
A. transcription of genes within the lac operon increases. B. transcription of genes within the lac operon decreases. C. transcription of genes within the lac operon does not change. D. E. coli cells replicate rapidly. E. the tryptophan operon becomes more active.
A technique that is used to artificially transform a bacterium is called electroporation. Electroporation:
a. exposes cells briefly to rapid pulses of electrical current. b. exposes cells to calcium ions. c. exposes cells to stomes. d. inserts the foreign DNA into the DNA in the chloroplast. e. inserts the foreign DNA into the plant's mitochondrial DNA.
During which phase of the cell cycle are chromosomes being copied?
a. G2 b. Mitosis c. G1 d. Cytokinesis e. S