7 Questions
If an organism had a DNA polymerase III that lost its ability to proofread, which of the following statements would be TRUE?
The mutation rate for the organism would increase, and more substitutions would be seen in its DNA than in an organism that had functional proofreading.
: Raising the temperature to over 50C ___ the rate of an enzymatic reaction.
inhibit
DNA polymerases use their ________ activity to remove a mismatched base pair.
3’-5' exonuclease
Lowering the pH for an enzyme that works best in a highly acidic environment ___ the rate for the reaction.
inhibit
the presence of an enzyme .... the required energy of activation of a chemcial reaction
lower
Arrange the following proteins in the proper order in which they participate in DNA replication: 1= Primase 2= Helicase 3= Single-Strand Binding Proteins 4= DNA Polymerase III
2, 3, 1, 4
Generally, as the amount of substrate is increased, the rate of the reaction is _____.
increased
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