DNA to Proteins

The sequence of t-RNA nucleotides is determined by

• deoxyribose

• cytoplasmic genes

• enzymes

• DNA of the nucleus

Tags

NGSS.HS-LS1-1

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

• codon

• anticodon

• translation

• mutation

Tags

NGSS.HS-LS3-2

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

Tags

NGSS.HS-LS1-1

A mRNA strand consists of 123 bases. Including the stop codon, how many amino acids would this code for?

• 369

• 41

• 40

• 246

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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.

The pentagon-shaped (5 sided) parts represent...

• nitrogen base

• Deoxyribose

• Ribose

• phosphate

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

Tags

NGSS.HS-LS1-1