Which of the following events occurs in the lytic cycle of bacteriophage T4 infection but not in the lysogenic cycle?
A. attachment
B. entry
C. digestion of host DNA
D. viral protein synthesis
E. both digestion of host DNA and viral proteins synthesis
Answer: C
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A) pelagic B) abyssal C) neritic D) continental shelf E) intertidal
The enzyme ____ produces ____ DNA that is complementary to mRNA
a. reverse transcriptase; single-stranded b. reverse transcriptase; double-stranded c. DNA polymerase; single-stranded d. DNA polymerase; double-stranded e. RNA polymerase; single-stranded
How many levels of consumption are depicted
in the figure? a. 1 b. 2 c. 3 d. 4 e. 5
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more offspring can be produced. b. the offspring are all identical to the parents. c. the interaction of the genes from both parents brings about genetic variation. d. evolution will occur at a slower rate when there are two parents. e. there is less variation from generation to generation.