DNA Replication Quiz

DNA replication is defined as the process of producing how many identical replicas of DNA from one original DNA molecule?

• One identical replica

• Two identical replicas

• Three identical replicas

• Four identical replicas

Which model of DNA replication is universally accepted as the most accurate?

• The Dispersive Model

• The Conservative Model

• The Semi-conservative Model

• The Semi-dispersive Model

In the Semi-conservative Model of DNA replication, what role do the original strands of DNA play?

• Coding strands

• Daughter strands

• Template strands

• Parent strands

According to the Semi-conservative Model, each new DNA molecule consists of how many original (parental) and newly synthesized (daughter) strands?

• One original and one newly synthesized strand

• Two original strands

• Two newly synthesized strands

• One newly synthesized and two original strands

What must occur every time a cell divides?

• The cell must mutate its genes.

• The cell must receive a complete set of all the genes.

• The cell must discard half of its genes.

• The cell must replicate only selective genes.

What are the three main stages of DNA replication?

• Initiation, elongation, and duplication

• Initiation, elongation, and termination

• Separation, elongation, and termination

• Unwinding, binding, and replication

Which enzyme is responsible for unwinding the DNA helix during the initiation stage of DNA replication?

• DNA polymerase

• DNA ligase

• DNA helicase

• DNA gyrase

What enzyme adds new nucleotides during DNA replication?

• DNA helicase

• RNA polymerase

• DNA polymerase III

• DNA ligase

In which direction is the new DNA strand built during DNA replication?

• 3' to 5'

• 5' to 3'

• 5' to 5'

• 3' to 3'

What is the function of DNA polymerase III's proofreading mechanism?

• To add nucleotides to the RNA primer

• To unwind the DNA helix

• To remove incorrect nucleotides that have been added accidentally

• To join Okazaki fragments together