In e. coli replication the enzyme primase is used to attach a 5 to 10 base ribonucleotide strand complementary to the parental dna strand. the rna strand serves as a starting point for the dna polymerase that replicates the dna. if a mutation occurred in the primase gene, which of the following would you expect?
a. replication would not be affected as the enzyme primase involved with rna synthesis.
b. replication would not occur on either the leading or lagging strand
c. replication would only occur on the leading strand
d. replication would only occur on the lagging strand

The diagram illustrates the activity of vesicles during a cellular process.

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins