Unit 6 Quiz

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

Which enzyme binds the Okazaki fragments during DNA replication?

• Helicase

• Polymerase

• Ligase

• Primerase

DNA polymerase is able to build the new DNA ______ along the leading strand.

• continuously

• only in short fragments

• very slowly

• prokaryotically

Which enzyme is responsible for adding nucleotides during DNA replication?

• Helicase

• DNA Polymerase

• Ligase

• RNA Polymerase

DNA is built in this direction

• 5^' to 3' (new nucleotides added to the 3' end)

• 3' to 5' (new nucleotides added to the 5' end)

• 3' to 5' (new nucleotides added to the 3' end)

• 5^' to 3' (new nucleotides added to the 5' end)

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate