A Model of a Biological Process Is Shown

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

A sequence of DNA template strand is shown. 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

Tags

NGSS.HS-LS1-1

A model of 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. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?

• Process: transcription; product: mRNA

• Process: translation; product: protein

• Process: replication; product: tRNA

• Process: recombination; product: polymerase

Tags

NGSS.HS-LS1-1

Part of an important cellular process involving a DNA strand is modeled. What is the purpose of this cellular process?

• preserving genetic information for future generations

• deleting the information in the sequence produced from the DNA template

• transcribing information in the DNA sequence for use by the cell

• producing more nucleotides for the DNA sequence

Tags

NGSS.HS-LS1-1

Which of the following polypeptides is coded for the mRNA sequence 5' AUGGUUAAACGACAAUCC 3'?

• Val, Lys, Phe, Gly, Ser

• Met, Asp, Phe, Ala, Arg

• Met, Val, Lys, Arg, Gln, Ser

• Ile, Gln, Lys, Asp, Gly, Leu, Ser

A section of a nucleic acid is shown. The process represented in the diagram produces a molecule that is complementary to the template strand of DNA. What type of molecule is produced?

• new DNA

• polypeptide

• messenger RNA

• carbohydrate