7B Protein Synthesis

7B: Protein Synthesis

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​(Polypeptides)

Multiple Choice

DNA holds the code for

• lipids

• carbohydrates

• polypeptides

• sugar

Multiple Choice

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

Multiple Choice

What process is happening in the diagram?

• transcription

• translation

• dna replication

• mitosis

Open Ended

7B Part of an important cellular process involving a DNA strand is modeled.

What process is depicted in the diagram is the PURPOSE of this cellular process?

Multiple Choice

which process is shown?

• diffusion
• repiration
• recombination
• translation

Open Ended

7B: A model of a biological process is shown here. What process is shown and what is the purpose of this process?

Multiple Choice

6C: The initial steps in gene expression are modeled above. 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

Multiple Choice

The image above shows an amino acid attached to which type of molecule?

• mRNA

• rRNA

• tRNA

• Protein

Open Ended

How many nucleotides/bases make up ONE codon?

Draw

Transcribe the following DNA to mRNA

Transcribe the DNA strand below:

TAC ATT CGA AAA

Open Ended

What amino acid is represented by the codon UUA?

Multiple Choice

What amino acid is represented by the codon CCA?

• Phenylalanine

• Tyrosine

• Proline

• Stop codon

Draw

6C Translate the DNA segment TAG using the codon chart below:

Multiple Choice

6C Which of the following polypeptides is coded for by the mRNA sequence ′5 AUGGUUAAACGACAAUCC 3'?

• Val, Lys, Phe, Gly, Ser

• Met, Asp, Phe, Ala, Arg

• Met, Val, Lys, Arg, Gln, Ser

• Ile, Gln, Lys, Asp, Gly, Leu, Ser