During prokaryotic cell division, two chromosomes separate from each other and distribute into the daughter cells by
a. attachment to microtubules.
b. a mitotic spindle.
c. repellent forces.
d. attachment to separating membrane regions.
e. All of the above
Ans: d. attachment to separating membrane regions.
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A. when a cofactor, instead of a reactant, binds to the enzyme active site. B. when the product, instead of the reactant, of a reaction binds to the active site. C. by blocking the production of an enzyme. D. when a substance binds to an enzyme at a site away from the active site. E. when a substance other than the substrate binds at the active site of an enzyme.
What is the probability of flipping a penny and a nickel and obtaining one head and one tail?
What will be an ideal response?
Which process of evolution does not change the total number of species?
A) Branching evolution B) Nonbranching evolution C) Extinction D) All change the number of species
Formalin (37% formaldehyde) is used for
A) antisepsis. B) disinfection. C) sterilization. D) sanitization. E) both disinfection and sterilization.