All mutations are not beneficial to the cell.
Answer the following statement true (T) or false (F)
False
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Which of the following countries does not contain any biodiversity hotspots?
a. Brazil b. Canada c. Cuba d. New Zealand
Which structure is the site of the synthesis of proteins that may be exported from the cell?
a. rough ER b. lysosomes c. plasmodesmata d. Golgi vesicles e. tight junctions
Which one of the following virulence factors contributes most to the spread of disease in the body?
A) endotoxin production B) siderophore production C) hemolysin D) hyaluronidase
If two sister species on the phylogenetic tree above differ from the other two in a single character state (say dark or light fur), how many character state changes (evolutionary events) are needed to explain this pattern?
a. one c. three b. two d. four