Unit 6 Study Guide: DNA to Protein

Any change in the nucleotide sequence of the DNA of a gene is called

• codon

• anticodon

• translation

• mutation

The building blocks that make up DNA and RNA are called

• nucleotides

• amino acids

• hydrocarbons

• monosaccharides

Which of the following sequences best describes the flow of information that takes place when a gene directs the synthesis of a protein?

• protein --> RNA --> DNA

• DNA --> mRNA --> tRNA --> protein

• DNA --> amino acid --> RNA --> protein

• DNA --> tRNA --> mRNA --> protein

Select the correct complementary sequence of DNA for

TAC ACG TTA AGC ACT .

• ATG TGC AAT TCG TGA

• TGC AAT TCG ACG UGA

• UGC AAT UCG TGA

• AUG TGC AAT UCG UGA

The diagram shows the DNA fingerprints from a blood sample and four different hair samples.

Based on the DNA fingerprints, which hair sample came from the same organism as the blood sample?

• Hair Sample 1

• Hair Sample 2

• Hair Sample 3

• Hair Sample 4

Which description explains the role of the tRNA in the process shown in this model?

• The model delivers amino acids to the ribosome so that they can be added to the developing peptide.

• The model recognizes the stop codon of a developing peptide so that no new amino acids are added.

• The model signals the release of the peptide from the ribosome once all of the amino acids have been added.

• The model scans the developing peptide to make sure that the sequence of the amino acids matches the mRNA.

What is the correct sequence of amino acids?

AUG UAC AGU UAG

• Met, Tyr, Ser, Stop

• Tyr, Ser, Stop Met

• Met, Iso, Glu, Stop

• Stop, Met, Iso, Tyr

Which of these chromosomal mutation diagrams shows a deletion mutation?

• A

• B

• C

• D

The building blocks of proteins are ...

• amino acids

• nucleotides

• hydrocarbons

• monosaccharides

What enzyme unzips and unwinds the DNA molecule?

• Helicase

• Polymerase

• Ligase

• Primase