Honors Biology Genetics Review

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

• Topoisomerase

• DNA Helicase

• DNA Polymerase

• Exonuclease

Which enzyme seals okazaki fragments together on the lagging strand?

• Topoisomerase
• Helicase
• Polymerase
• Ligase

What is the backbone of DNA made of?

• Nitrogen bases
• Amino acids
• Double H
• Sugar & Phosphate

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 

Which enzyme is responsible for adding nucleotides?

• Topoisomerase
• DNA Polymerase
• Ligase
• Primase

This enzyme synthesizes short RNA sequences to guide DNA Polymerase

• Primers

• DNA Primase

• DNA Polymerase

• Topoisomerase

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

• DNA Polymerase

• DNA Primase

• DNA Helicase

• RNA Polymerase

Okazaki fragments are found on the _______________ strand

• Leading

• Lagging

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides