Protein Synthesis

Protein synthesis occurs in two steps. What step is pictured?

• transcription

• translation

• DNA replication

Tags

NGSS.HS-LS1-1

Where does the process pictured below occur inside the cell?

• nucleus

• ribosome

• chloroplast

• mitochondria

If there are only 20 different amino acids, how can there be so many different types of proteins?

• Each protein is determined by the sequence of amino acids.

• There are only a few number of proteins.

Tags

NGSS.HS-LS1-1

What is the function of mRNA?

• mRNA carries the copy of the DNA (gene) to the nucleus to be copied.

• mRNA carries the amino acid from the cytoplasm to the ribosome to be attached to the protein chain.

• mRNA carries the copy of the DNA (gene) to the ribosome to be translated.

• mRNA carries the amino acid from the ribosome to the nucleus to be attached to the protein chain.

Given the following DNA sequence, what would be the mRNA sequence?

TAC GCA TAG GCC ATC

• AUG CGU AUC CGG UAG

• AUG GCA AUC CGG UAG

• TAC GCA TAG GCC ATC

• AUG CGU AUC CGG AUC

Tags

NGSS.HS-LS3-1

What is the function of RNA polymerase?

• RNA polymerase glues the Okazaki fragments of DNA together during DNA replication.

• RNA polymerase adds the RNA bases to the exposed DNA during transcription to produce mRNA.

• RNA polymerase adds the amino acids to the protein chain during translation to produce an amino acid chain.

• RNA polymerase breaks the hydrogen bonds between the nitrogen bases of DNA during transcription.

Proteins are produced by the ribosome during protein synthesis. What sub-units are assembled to make proteins?

• amino acids

• monosaccharrides

• fatty acids

• nucleotides

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Given the following mRNA sequence, determine the amino acid sequence.

AUGGCACGGAAGCAGUGA

• Met-Ala-Arg-Lys-Gln-Stop

• Met-Ala-Arg-Cys-Gln-Stop

• Met-Stop

• Met-Ala-Lys-Arg-Gln-Stop

Tags

NGSS.HS-LS1-1

What is the function of tRNA?

• tRNA brings the correct nitrogen base to the nucleus during transcription.

• tRNA builds the strand of mRNA during transcription in the nucleus.

• tRNA breaks the hydrogen bonds between the nitrogenous bases of DNA during transcription.

• tRNA brings the correct amino acid to the ribosome during translation.

What are the 3 stop codons?

• UAA

• AUG

• UAC

• UAG

• UGA