DNA Replication

What is the purpose of DNA replication?

• Cut the DNA 

• Make more cells

• Apoptosis

• Duplicate the DNA

What do we call DNA replication since new DNA has 1 parent strand and 1 new strand?

• Conservative 

• Semiconservative 

• Dispersive

Why is it crucial that living things are able to replicate their DNA?

• Each cell must have its own DNA

• Less copies of DNA are needed when a new cell is created

• A cell needs multiple copies of DNA

• Only muscle cells need DNA 

Tags

NGSS.MS-LS3-2

This enzyme is capable of breaking Hydrogen bonds found between the bases of DNA

• Topoisomerase

• DNA Helicase

• DNA Polymerase

• Exonuclease

This enzyme helps helicase unzip DNA by relieving supercoiling

• Topoisomerase

• Exonuclease

• DNA Primase

• DNA Polymerase

This enzyme synthesizes short RNA sequences to guide DNA Polymerase

• Primers

• DNA Primase

• DNA Polymerase

• Topoisomerase

What is the LAST step of the completion of DNA replication?

• Telomeres are added to ends of DNA

• Ligase glues Okazaki fragments

• DNA polymerase proofreads

• Topoisomerase relieves supercoiling

Which enzyme is responsible for checking DNA for errors, and fixing it?

• DNA Polymerase

• DNA Primase

• DNA Helicase

• RNA Polymerase

In what direction does the Leading strand run?

• 3' ----> 5'

• 5' -----> 3'

• It doesn't matter

• Both directions

Each DNA molecule created contain one NEW strand and one OLD strand

• True

• False