Replication Translation Transcription

During protein synthesis, what does mRNA do?

• it strings together two complementary DNA strands

• it constructs proteins out of random amino acids

• it delivers DNA's instructions for making proteins to the ribosome

• it constructs proteins out of random amino acids

Translation takes place in the 

• ribosome

• chloroplast

• nucleus

• mitochondria

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base

• codon

• amine

• serine

Tags

NGSS.HS-LS1-1

What would happen if we did not have start codons?

• Polypeptide chains would continue to grow

• Amino acids would bind to tRNA

• Protein synthesis wouldn't occur

• mRNA would form a double strand

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA

• Met-Pro-Ala-Val

• Met-Pro-Val

• Tyr-Gly-His

• Tyr-Gly-Arg-His

Brings the amino acids to the ribosome

• mRNA

• tRNA

• rRNA

• DNA

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA

• CGATAT

• CGAUAU

• GCUTUT

What amino acid does the DNA strand - TAC - code for? (hint: first you have to transcribe it into mRNA)

• Tyr

• Asn

• Ile

• Met

Tags

NGSS.HS-LS1-1

What amino acid does the mRNA codon AGG code for?

• Arg

• Lys

• Ser

• Met

Where does transcription take place?

• nucleus

• cytoplasm

• ribosome