Protein Synthesis

A partial DNA segment and an RNA chart is shown.

3' TCATGCATG 5'

What amino acid is encoded in the partial DNA segment?

• Serine-Threonine-Tyrosine

• Serine-Serine-Tyrosine

• Serine-Threonine-Methionine

• Serine-Alanine-Methionine

The students are modelling 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 it's URACIL - ADENINE instead of URACIL-THYMINE

• The mRNA strand is complementary to the DNA template strand, however, it's URACIL-ADENINE instead of THYMINE-ADENINE

• The mRNA strand is complementary to the DNA template strand however, it's ADENINE-THYMINE instead of URACIL-THYMINE

• The mRNA strand is complementary to the DNA template strand however, its URACIL-ADENINE instead of THYMINE-ADENINE

A sequence of DNA strand is shown.

'3 TCC AAT GGC TTA TTT GCA 5'

Which of these is the correct amino acid chain produced from the DNA template strand?

• Arginine-Leucine-Proline-Asparagine-Lysine-Arginine

• Tryptophan-Phenylalanine-Leucine-Glycine-Asparagine-Phenylalanine

• Serine-Leucine-Proline-Asparagine-Lysine-Arginine

• Tryptophan-Phenylalanine-Leucine-Glycine-Asparagine-Serine

A model of the biological process is shown.

What is the purpose of this process?

• To replicate the DNA of an organism before cell division.

• To assemble nucleotides in an mRNA chain along a DNA template.

• To synthesize amino acids used to unzip strands of DNA and copy the genetic code.

• To translate the genetic code into a specific sequence of amino acids.

The initial steps in gene expression are modeled below.

Double-stranded DNA first unwinds into 2 strands.

Which process and products are represented by diagram 2?

• Process: Transcription

  Product: mRNA

• Process: Translation

  Product: Protein

• Process: Replication

  Product: tRNA

• Process: Recombination

  Product:

  Polymerase