Which of the following may be a component of bacterial cell walls?
A. carrageenan
B. lipoteichoic acids
C. mycolic acid
D. tubulin
E. both lipoteichoic and mycolic acids
Answer: E
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What is represented by the difference between the lowest and highest values on the x-axis of a normal distribution curve for the population that is being studied?
A) bell-shaped curve B) mean value C) variance D) frequency distribution
The 7 characters studied by Mendel are examples of single gene traits. They are called this because:
A: there is only a single genotype for all individuals. B: distinct phenotypes are produced by variant alleles of a single gene. C: there always is 1 dominant allele and 1 recessive allele for a given character. D: all of the above
What types of behaviors would you predict would be controlled by quorum sensing?
A. Behaviors effective for single bacteria B. Behaviors effective for groups of bacteria C. All behaviors D. Only virulence behaviors
The T tubules that tunnel deep into a muscle fiber are formed from
A) neurons. B) blood proteins. C) plasma membrane. D) osteocytes.