Protein Synthesis

A model of transcription and a codon chart are shown. Which amino acid would be coded first from the DNA strand being transcribed?

• Cys

• Phe

• Ile

• Met

A partial DNA segment and an mRNA codon chart are shown. What amino acid sequence is encoded in the partial DNA segment?

• Serine – Threonine – Tyrosine

• Serine – Serine – Tyrosine

• Serine – Threonine – Methionine

• Serine – Alanine – Methionine

Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?

• The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine

• The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.

• The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of adenine is paired with thymine

• The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine.