Protein Synthesis Review

Describe the two steps of protein synthesis in order.

Identify the location in a eukaryotic cell where each process (indicated by the arrows) occurs.

DNA → RNA → protein

Tags

NGSS.HS-LS1-1

Which description identifies the purpose of Step A in this process?

• To correct mutations in the DNA sequence

• To produce an exact copy of the DNA molecule

• To copy the DNA of a gene sequence onto a strand of mRNA

• To assist in the folding of a protein

Determine the mRNA and amino acid sequence for the following: DNA: T A C G C G G T G G T C A T T mRNA: _______ _______ _______ _______ _______ _______ AA: _______ _______ _______ _______ _______

Tags

NGSS.HS-LS1-1

Determine the correct mRNA sequence given the DNA Strand. DNA: T A C G C G G T G G T C A T T mRNA: _______ _______ _______ _______ _______ _______

• AUG CGC CAC CAC TAA

• ATG CGC CAC CAC UAA

• AUG CGC CAC CAG UAA

• AUG GGC CAC CAC UAA

Determine the mRNA and amino acid sequence for the following: DNA: T A C G C G G T G G T C A T T mRNA: _______ _______ _______ _______ _______ _______ AA: _______ _______ _______ _______ _______

• Met - Arg - Glu - His - STOP

• Met - Arg - His - Glu - Tyr

• Met - Arg - His - Glu - STOP

• None of the above

Tags

NGSS.HS-LS1-1

A model of transcription and a codon chart are shown. Which amino acid would be coded first from the DNA strand being transcribed?

• Cys

• Phe

• Ile

• Met

Tags

NGSS.HS-LS1-1

A sequence of a DNA template strand is shown. 3’ TCC AAT GGC TTA TTT GCA 5’ Which of these is the correct amino acid chain produced from the DNA template strand?

• Arginine - Leucine - Proline - Asparagine - Lysine - Arginine

• Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Phenylalanine

• Serine - Leucine - Proline - Asparagine - Lysine - Arginine

• Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Serine

Tags

NGSS.HS-LS1-1

Which of the following polypeptides is coded for by the mRNA sequence: 5’AUG GUU AAA CGA CAA UCC 3’?

• Val, Lys, Phe, Gly, Ser

• Met, Asp, Phe, Ala, Arg

• Met, Val, Lys, Arg, Gln, Ser

• Ile, Gln, Lys, Asp, Gly, Leu, Ser

Tags

NGSS.HS-LS1-1

The initial steps in gene expression are modeled below. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?

• Process: transcription; product: mRNA

• Process: translation; product: protein

• Process: replication; product: tRNA

• Process: recombination; product: polymerase

Tags

NGSS.HS-LS1-1

A partial DNA segment and an mRNA codon chart are shown. What amino acid sequence is encoded in the partial DNA segment?

• Serine – Threonine – Tyrosine

• Serine – Serine – Tyrosine

• Serine – Threonine – Methionine

• Serine – Alanine – Methionine

Tags

NGSS.HS-LS1-1