The type of viral infection in which a virus enters a host cell and remains dormant in the host cell's chromosome is
a rare form of viral infection.
a transgenic infection.
a lytic infection.
a systematic infection.
a lysogenic infection
a lysogenic infection
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Once a hemlock-spruce forest is established in Glacier Bay, it tends to remain relatively unchanged unless disturbed. This makes it the ____ community for the region
Fill in the blank with the appropriate word.
Attenuation in trp gene regulation is accomplished by
A) reducing permeability of tryptophan, the effector molecule. B) blocking expression of trp mRNA. C) formation of secondary mRNA structures in the leader region. D) binding with RNA polymerase. E) repression of the trp operator.
The instrument used to measure oxygen consumption in this lab was a
A. balance. B. fermentation tube. C. graduated cylinder. D. respirometer. E. volumeter.
A seal that just ate a clam is eaten by a shark. The shark is acting as a _____.
a. producer b. secondary consumer c. tertiary consumer d. detritivore e. primary consumer