Which of the following phagocytic processes occurs last in the sequence?
a. Chemotaxis of the phagocyte to the site of infection
b. Adherence
c. Formation of the phagolysosome
d. Exocytosis
Ans: d. Exocytosis
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In warm areas, salt is extracted from seawater by:
a. evaporation. b. freezing. c. reverse osmosis. d. chemical methods. e. filtration.
According to the data shown in the accompanying figure, the reduction in reproduction rates most closely correlates with a corresponding reduction in survival in ________
A) female collared flycatchers B) male red deer C) female red deer D) fruit flies
Expression of a(n) ________ alters gene transcription in E. coli by activating transcription of specialized heat stress response genes
Fill in the blank(s) with correct word
Crossing over is ________.
A. an independent assortment of chromosomes B. the exchange of corresponding portions of homologous chromosomes. C. the formation of tetrads D. the movement of genetic material from one chromosome to a nonhomologous chromosome