Unit 6 - DNA replication, Transcription, Translation, Operons

Nitrogenous bases are joined by which type of bond?

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

Tags

NGSS.HS-LS1-1

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

The enzyme that "unzips" the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Okazaki fragments are used to elongate

• the leading strand toward the replication fork

• the lagging strand toward the replication fork

• both strands in both directions

• )the leading strand away from the replication fork

• the lagging strand away from the replication fork

Adds nucleotides to the newly synthesized strand of DNA

• DNA polymerase I
• DNA polymerase III
• Primase
• Ligase

synthesizes a short fragment of RNA that allows DNA polymerase III to bind

• ligase
• DNA polymerase I
• primase
• helicase

removes the RNA primer and adds DNA nucleotides to fill in the gap

• DNA polymerase III
• ligase
• primase
• DNA polymerase I

Which enzyme binds to single-stranded DNA and prevents it from reannealing? 

• Single-stranded binding protein

• DNA polymerase

• Primase

• DNA helicase

Small segments of DNA made on the lagging strand are called:

• Okazaki Fragments
• ERVs
• Transposable Elements
• Telomeres

Which enzyme proofreads and removes RNA Primase

• Ligase

• Polymerase 1

• Polymerase 3

• Helicase