What causes antigenic drift to occur?
A. introduction of new genes from other
viruses
B. gradual changes in the amino acid
sequence of viral proteins
C. gradual changes in the viral genome due
to replication errors
D. gradual changes in both the amino acid
sequence of viral proteins and the viral
genome due to replication errors
C
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Binding of which complex increases the ability of RNA polymerase to transcribe the lac operon?
What will be an ideal response?
Under certain conditions, the rate of mutation of a particular gene may be fairly easy to determine. Name three properties of the mutation that would favor the most direct determination of mutation rate
What will be an ideal response?
If a child more strongly resembles one parent's physical traits than the other parent's, the explanation could be due to chromosome movements during ________________.
A. anaphase II B. metaphase II C. prophase II D. prophase I E. telophase I
Answer the following questions true (T) or false (F)
1. Food poisoning is often the result of ingesting microbial toxins, not the microbes themselves. 2. Water contamination refers only to the presence of excess or non-endemic microbes.