Compare and contrast bacteriophage lysis and lysogeny
What will be an ideal response?
Both lysis and lysogeny involve bacterial/phage interactions related to the production of phage progeny. Lysis occurs when progeny phage burst from the bacterial cell; lysogeny involves the incorporation of the phage chromosome into the bacterial chromosome.
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Approximately ____ genes have been identified in the genome of Arabidopsis thaliana
a. 5,400 b. 28,000 c. 67,000 d. 120,000 e. 3,200,000
In the lac operon, what acts as the inducer?
A) glucose B) permease C) allolactose D) ?-galactosidase E) transacetylase
Which of the following is the best explanation for the inability of a specific animal cell to reduce the Ca2+ concentration in its cytosol compared with the extracellular fluid?
A) blockage of the synaptic signal B) loss of transcription factors C) insufficient ATP levels in the cytosol D) low levels of protein kinase in the cell
The hormone that triggers insect metamorphosis from larva to adult is
a. ecdysone. b. aldosterone. c. retinoic acid. d. epidermal growth factor (EGF).