Which of the following drugs inhibits nucleic acid synthesis specifically in most bacteria?
A) fluoroquinolones
B) actinomycin
C) rifampin
D) tetracycline
E) 5-fluorocytosine
A
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You want to simulate the production of carbon dioxide (CO2) in a laboratory setting using carbon and oxygen atoms. What type of reactions do you need to facilitate in order to create CO2?
A. An oxidation, or the gain of an electron, and a reduction, or the loss of an electron. B. An oxidation, or the loss of an electron, and a reduction, or the loss of an electron. C. An oxidation, or the gain of an electron, and a reduction, or the gain of electron. D. An oxidation, or the loss of an electron, and a reduction, or the gain of an electron.
In sexual reproduction in multicellular organisms, produces haploid gametes, and unites the gametes to create diploid zygotes.
A. meiosis; fertilization B. mitosis; pollination C. fertilization; meiosis D. pollination; fertilization E. fertilization; mitosis
Many human behavioral traits
A. show genetic heterogeneity with the same phenotype resulting from different genes. B. are due to dominant genes. C. are a result of mutations in structural genes. D. show genetic heterogeneity with the same phenotype resulting from different genes and are due to dominant genes. E. none of these.
What is the function of the structure labeled A in Figure 25-1?
a. to adhere to surfaces or other bacteria
b. to prevent phagocytosis
c. support and protection in hypotonic conditions
d. transmission of DNA between bacteria
e. locomotion