Bellringer 60 Bio

The two strands of the DNA helix are unzipped by the breaking of the weak hydrogen bonds

• Helicase

• Polymerase

• mRNA

Its primary function is to synthesize new DNA strands during DNA replication and repair.

It does this by adding nucleotides to an existing DNA strand, using the original DNA as a template. Additionally, many DNA ___________ have proofreading abilities,

• Helicase

• Polymerase

• mRNA

Tags

NGSS.HS-LS1-1

The bonds between the two strands of DNA are unzipped by breaking the weak ______ bonds between base pairs.

• Hydrogen

• Carbon

• Nitrogen

Tags

NGSS.HS-LS1-1

A neutral place for the RNA polymerase to begin to match bases, because it will eventually be cut out of the DNA/RNA sequence

• Intron

• Exon

• Mitron

• Begintron

__________ are nucleotide sequences that carry information for protein synthesis, whereas introns are interrupting sequences that do not code for any protein but are found between exons.

• Introns

• Exons

• Protein

• Amino acid

Tags

NGSS.HS-LS1-1

When the mRNA is being copied or written is called

• transcription

• translation

• modification

When the mRNA is read it is:

• Transcription

• Translation

• modification

• splicing

Tags

NGSS.HS-LS1-1