The parts of the graph indicated at points C, D, and E represent
A) depolarization.
B) hyperpolarization.
C) the refractory period.
D) repolarization.
E) sodium channel activity.
D) repolarization.
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The relationship between DNA and chromosomes is most like
a. an egg yolk inside of an egg. b. a spoon cradling some peas c. thread wrapped around a spool d. the candy shell surrounding the chocolate in a piece of M&M candy.
Which of the following elements is NOT responsible for a significant portion of the mass of living
organisms? a. O b. S c. N d. H e. C
When eukaryotic DNA undergoes replication, DNA helicase opens many sites along the DNA molecule at which DNA replication initiates. These sites are called "origins of replication." In what way does having multiple sites of replication affect the process of DNA replication?
A) It makes the process occur more quickly. B) It allows longer molecules to be generated. C) It ensures that errors in DNA replication never occur. D) It allows proteins to be generated at the same time as DNA.
Activation energy can be provided by the kinetic energy of moving molecules
Indicate whether the statement is true or false