Laboratory research has shown that if a solution containing lipids and proteins is agitated for a long time, then hollow structures called vesicles are produced that resemble ________
Fill in the blank(s) with correct word
cells
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The allelic make up of a cell or individual is referred to as its
A. blueprint. B. genotype. C. phenotype. D. pedigree.
Four of the five events listed below lead to secondary
succession. Select the exception. a. opening the canopy in a tropical rain forest b. abandoning a cotton field c. retreat of a glacier in Alaska d. a forest fire e. growth of weeds in a lawn that is not mowed
The main role of the central vacuole in plant cells is to
A) store glycogen for seed growth. B) synthesize and store proteins. C) digest trapped food particles. D) catalyze photorespiration in association with chloroplasts. E) maintain turgor pressure in plant tissue.
During the process of immunotherapy, cells are removed and genetically engineered with genes against tumors. This means that white blood cells will now
A. target all cells of the body for destruction. B. display tumor antigens on their cell surface, which will then be released near tumors. The antigens destroy the tumors. C. display tumor antigens on their cell surface, stimulating cytotoxic T cells to attack tumor cells. D. stimulate surrounding cells to slow down or stop cell division, shrinking tumors. E. display tumor antigens on their cell surface, meaning they will search and destroy any tumor cells.