Transcription & Translation

Multiple Choice

What is a Gene?

• A segment of RNA that encodes for a protein
• A chromosome
• A segment of DNA that encodes for a protein
• Your genome

Multiple Choice

What does the codon CAC represent?

• Cysteine

• Histidine

• Leucine

• Tryptophan

Multiple Choice

What is the relationship between the codon and the anticodon in the given diagram?

• The codon is complementary to the anticodon

• The codon is identical to the anticodon

• The codon is the reverse of the anticodon

• The codon and anticodon are unrelated

Multiple Choice

What is the role of tRNA in the process of translation?

• To carry amino acids to the ribosome

• To transcribe DNA into mRNA

• To bind to ribosomes only

• To initiate the process of transcription

Multiple Choice

What is the role of the stop codon in the translation process?

• It initiates translation

• It releases the polypeptide

• It binds to tRNA

• It synthesizes mRNA

Fill in the Blanks

Multiple Choice

Muscle cells differ from nerve cells mainly because they

• express different genes.

• contain different genes.

• use different genetic codes.

• have unique ribosomes

Multiple Choice

When gene expression occurs

• A gene is mutated with either an insertion or deletion

• The gene is removed from the genotype in that cell

• The gene is passed on to the daughter cells during mitosis

• The gene is activated and used in protein synthesis

Multiple Choice

How can a person's liver cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• The two different cells become mutated
• The proteins expressed in each cell are different
• They actually have different DNA in the two types of cells.
• The genome of the different cells changes