Where does DNA replication start?

At the middle of the DNA strand

What are the three stages of DNA replication?

Initiation, elongation, termination

Initiation, replication, termination

Elongation, replication, termination

Initiation, synthesis, termination

What is the function of DnaA proteins in E. coli DNA replication?

Bind to DnaA box sequences within the origin of replication to initiate DNA replication

Aid in the recruitment of DNA helicase to the origin

Remove RNA primers, fill in gaps with DNA

Covalently attach adjacent Okazaki fragments

What role does DNA polymerase I play in E. coli DNA replication?

Removes RNA primers, fills in gaps with DNA

Synthesizes DNA in the leading and lagging strands

Binds to ter sequences and prevents the advancement of the replication fork

What are the three important sets of DNA sequences in oriC?

DnaA boxes, AT-rich regions, GATC methylation sites

Promoter regions, Exons, Introns

Enhancers, Silencers, Operators

Telomeres, Centromeres, Origins of replication

What is the role of DnaA proteins in bacterial DNA replication?

Bind to DnaA boxes, causing AT-rich regions to separate

Bind to oriC and separate strands

What is the function of DNA helicase in bacterial DNA replication?

Binds to oriC and separates strands, moving in a 5' → 3' direction

Causes AT-rich regions to separate

Replicates DNA unidirectionally

What is the role of DNA gyrase in bacterial DNA replication?

Alleviates positive supercoiling ahead of the replication fork

Initiates the replication process

What is the role of SSBs in bacterial DNA replication?

Bind to parental ssDNA strands to prevent reannealing

Replace RNA nucleotides with DNA nucleotides

Join Okazaki fragments together

What is the function of DNA ligase in bacterial DNA replication?

Joins Okazaki fragments together

Replaces RNA nucleotides with DNA nucleotides

Binds to parental ssDNA strands

What is the main difference between the synthesis of the leading and lagging strands during DNA replication?

Leading strand is synthesized continuously, while lagging strand is synthesized discontinuously.

Leading strand is synthesized discontinuously, while lagging strand is synthesized continuously.

Leading strand requires multiple RNA primers, while lagging strand requires only one.

Both strands are synthesized continuously.

What are Okazaki fragments?

Short DNA sequences synthesized on the lagging strand.

Short DNA sequences synthesized on the leading strand.

Short RNA sequences synthesized on the leading strand.

Long DNA sequences synthesized on the lagging strand.

What happens at the 3' exonuclease site during DNA replication?

The strand is digested in the 3' to 5' direction until the incorrect nucleotide is removed.

The strand is synthesized in the 5' to 3' direction.

The strand is transcribed into RNA.

The strand is translated into protein.

Which of the following is a characteristic of eukaryotic DNA replication?

Chromatin is tightly packed within nucleosomes

What is a feature of eukaryotic chromosomes that makes DNA replication more complex?

They are not linked with the cell cycle

What is the first step in the initiation of eukaryotic DNA replication?

preRC converts to active replication

MCM helicase binds to the leading strands

What happens during the S phase of eukaryotic DNA replication?

preRC is converted to an active replication site

MCM helicase binds to the leading strands

What is the role of DNA polymerase δ in eukaryotic DNA replication?

It extends Okazaki fragments to form a flap.

It joins two fragments together.

What is the function of DNA ligase in the process of eukaryotic DNA replication?

It joins two fragments together.

Bio 206 CH:11

Quiz

•

Science

•

12th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-LS1-1

Standards-aligned

Alex Ly

Used 6+ times

FREE Resource

58 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main topic of Chapter 11?

Protein Synthesis

DNA Replication

Cell Division

RNA Transcription

What is the shape of DNA according to the Watson-Crick model?

Linear

Helix

Circular

Square

According to the Watson-Crick model, what must happen to the DNA strands for replication to occur?

They must be joined together

They must be separated

They must be cut into pieces

They must be twisted tighter

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between the bases in the DNA strands?

Identical

Random

Complementary

Opposite

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model of DNA replication results in two DNA molecules, each with one original and one new strand after the first round of replication?

Conservative model

Semiconservative model

Dispersive model

Random model

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which DNA replication model does the original double helix remain intact and an entirely new double helix is formed?

Conservative model

Semiconservative model

Dispersive model

Fragmented model

Which DNA replication model involves the original DNA being interspersed with new DNA in each strand after replication?

Conservative model

Semiconservative model

Dispersive model

Hybrid model

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Bio 206 CH:11

58 questions

What is the main topic of Chapter 11?

What is the shape of DNA according to the Watson-Crick model?

According to the Watson-Crick model, what must happen to the DNA strands for replication to occur?

What is the relationship between the bases in the DNA strands?

Which model of DNA replication results in two DNA molecules, each with one original and one new strand after the first round of replication?

In which DNA replication model does the original double helix remain intact and an entirely new double helix is formed?

Which DNA replication model involves the original DNA being interspersed with new DNA in each strand after replication?

In what year did Matthew Meselson and Franklin Stahl determine that the semiconservative model for DNA replication is correct?

Which model of DNA replication was confirmed by Matthew Meselson and Franklin Stahl?

What is the nature of DNA replication?

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