During generalized transduction ________.
A. any DNA fragment of the appropriate size is packaged
B. the host chromosome is degraded into randomly sized fragments
C. any bacterial gene may be transferred to the subsequent host
D. All of the choices are correct.
Answer: D
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A(n) ________ is a latent form of a virus genome that remains within the host without destroying it.
Fill in the blank(s) with the appropriate word(s).
What percentage of the species that have ever lived have become extinct?
a. 1 percent b. 9 percent c. 50 percent d. 75 percent e. 99 percent
If an error is made during replication that is not caught by DNA polymerase, the most likely is that _____
a. both strands of DNA will be mutated b. only the daughter strand will be mutated c. a mutation that causes cancer will occur d. DNA ligase will repair the mistake before a mutation occurs e. DNA replication will stall indefinitely
Thomas Malthus proposed that
a. the food supply increased faster than the population. b. the population increased faster than the food supply. c. the food supply and population increased at the same rate. d. artificial selection was the key to evolution. e. natural selection was the key to evolution