Which cell line has demonstrated a consistent season-to-season isolation frequency of influenza viruses?
a. Primary monkey kidney
b. Lung fibroblasts
c. HeLa
d. HEp-2
A
Cell culture is available for influenza virus using a variety of cell lines. Primary monkey kidney cell lines have demonstrated a consistent season-to-season isolation frequency of influenza virus.
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Species of show the greatest diversity in the Cenozoic era
a. birds b. trilobites c. reptiles d. insects
During which phase of the cell cycle do chromosomes separate and move toward opposite poles?
a. prophase b. metaphase c. anaphase d. telophase
Which of the following is NOT true of CAM
plants?
a. they are most like C4 plants in their photosynthetic metabolism b. the light-independent reactions begin at night c. they fix carbon only during the night d. they include the cacti and succulents e. they use rubisco
Wolbachia can have ALL of the following effects on their insect hosts EXCEPT
a. the killing of males. b. parthenogenesis. c. the sterilization of females. d. feminization.