Patients with severe bacterial sepsis who develop a fever have higher survival rates than patients with severe bacterial sepsis who do not develop a fever
Does this observation provide causative evidence for the beneficial role of fever in fighting infections?
a. Yes, patients who develop a fever will have a higher mean fitness.
b. Yes, developing a fever is correlated with a strong immune system.
c. No, the disease in nonfever patients may have been too severe to allow the body to develop a fever.
d. No, fever has been shown by other studies to be inconsequential in fighting infections.
C
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A reducing medium is used to culture ________ organisms.
A. pathogenic B. aerobic C. anaerobic D. fastidious
Bacterial and eukaryotic replication have many similarities. Which of the following is not a true comparison?
A. Both form loops with the lagging strand template to accommodate the antiparallel nature of DNA. B. Both incorporate a sliding clamp mechanism in their replication polymerase. C. Both the primase of bacteria and Pol ? of eukaryotes are responsible for primer synthesis and only incorporate ribonucleotides. D. Eukaryotic replication rates are slower than bacterial rates. E. The Okazaki fragments generated in eukaryotes are shorter than those in bacteria.
As an undergraduate research assistant, you are given a genetic mapping project. You are told that genes a and b are
7.4 map units from each other and that genes b and c are 5.7 map units from each other. You perform a testcross to determine the map distance between a and c. Which of the following results would indicate that c lies between a and b?
a. 11.1 map units b. 15.0 map units c. 2.0 map units d. 14.8 map units e. 13.1 map units
Homo sapiens have existed on earth for 2% of the earth's history.
Answer the following statement true (T) or false (F)