Question

dna mutation simulation
access the simulation at: lab interactive: dna to protein (connected bio)

1. identify the parts of the model:

ribosome
amino acids
trna
mrna

1. what is the role of mrna in this process?

Explanation:

1. Identify the parts of the model:

• Ribosome: It is the site of protein synthesis. In the diagram, structure \( B \) represents the ribosome as it is where the tRNA and mRNA interact for translation.
• Amino Acids: These are the building blocks of proteins. Structure \( A \), which shows small molecules that will form a chain (protein), represents amino acids.
• tRNA: Transfer RNA (tRNA) has an anticodon loop that pairs with the codon on mRNA. Structure \( C \) (the green - shaped molecules with anticodons) represents tRNA.
• mRNA: Messenger RNA (mRNA) carries the genetic code from DNA to the ribosome. Structure \( D \) (the red - colored strand with codons) represents mRNA.

1. Role of mRNA:

• mRNA (messenger RNA) carries the genetic information (in the form of codons) from DNA (in the nucleus, not shown in this part of the diagram but implied in the overall DNA - to - protein process) to the ribosome. The ribosome reads the codons on mRNA, and tRNA brings the corresponding amino acids based on the codon - anticodon pairing. So, mRNA serves as a template for protein synthesis, dictating the sequence of amino acids in the polypeptide chain.

Answer:

1.

• Ribosome: \( B \)
• Amino Acids: \( A \)
• tRNA: \( C \)
• mRNA: \( D \)

1. mRNA carries the genetic code (in the form of codons) from DNA to the ribosome and serves as a template for protein synthesis, determining the sequence of amino acids in the polypeptide chain.