AP unit 6 review

As DNA replicates during the S phase, this enzyme will add new DNA nucleotides to each side

• DNA polymerase

• RNA polymerase

• DNA helicase

• DNA ligase

The step of protein synthesis that edits the mRNA transcript, removing introns and pasting exons together for transport to the ribosome

• processing

• DNA editing

• translation

• transcription

This molecule is found between the deoxyribose sugars on the DNA polymer

• nitrogen bases

• thymine

• phosphate group

• hydrogen bonds

RNA polymerase is used during

• translation

• transcription

• replication

• processing

Enzyme used in both replication and transcription to unwind and unzip the DNA strand

• topoisomerase

• helicase

• polymerase

• ligase

This enzyme is used on the lagging strand to paste Okazaki fragments together

• polymerase

• primase

• ligase

• isomerase

The part of the DNA nucleotide attached to the nitrogen base with a covalent bond is the

• deoxyribose

• phosphate

The molecule used to edit the mRNA transcript in the nucleus, removing introns and adding the 5'cap and poly A tail

• spliceosome

• ligase

• polymerase

• exon

The molecule used to carry the DNA code to the ribosome

• tRNA

• mRNA

• rRNA

• dRNA

This enzyme stabilizes the DNA strand to prevent overwinding and breakage as it unwinds for replication or transcription

• okazaki fragments

• topoisomerase

• polymerase

• telomeres