The fusion of gametes, resulting in the formation of a zygote, is called ____
Fill in the blank with the appropriate word.
fertilization
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Which of the following is not a consequence of activation of the complement system?
A) attraction and activation of leukocytes B) increased phagocytosis by phagocytic cells (opsonization) C) lysis of bacteria and other foreign cells D) repair of damaged tissue
Which of the following questions is most appropriate to an investigation at the landscape level?
A) What is the effect of diminished resources on an individual's life span? B) What is the relationship between resource availability and birthrate? C) Which factors give rise to the spatial extent and arrangement of the various ecosystems? D) How long does it take for carbon to be cycled from the atmosphere into living tissue?
The gene that can detect the expression of another gene is called a/an ________
A) reporter gene B) transgene C) alternate gene D) inactivated gene E) functional gene
A drug researcher has developed a macromolecule that can bind to scrapie and thus change the prions conformation. What effect might this have on the actions of scrapie?
A. The shape change could prevent the scrapie protein from converting normal proteins to scrapie proteins. B. The shape change could block the translation of scrapie RNA. C. The shape change could stop the replication of scrapie DNA. D. The shape change could stop the transcription of scrapie RNA. E. The shape change could induce scrapie protease activity.