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10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii
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This is collection of data made by comparing objects in standard units. in science, the units are metric.
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As a result of these processes the single celled organism accomplishes
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Biology, 22.06.2019 14:50
Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.
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Water is pretty small. why does it need proteins (the aquaporins) to cross the plasma membrane?...
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