Question

1. during translation, each trna molecule carries. as the trnas bind to mrna, these link together, creating

a. an amino acid, a peptide chain

b. adenine, replication

c. a chromosome, a double helix

d. a dna molecule, protein

Explanation:

To solve this, we analyze each option:

• Option a: During translation, tRNA molecules carry amino acids. When tRNAs bind to mRNA, the amino acids they carry link together to form a peptide chain (which is part of protein synthesis).
• Option b: Adenine is a nucleotide base, and replication is related to DNA copying, not translation. So this is incorrect.
• Option c: Chromosomes and double helix are related to DNA structure, not translation. Incorrect.
• Option d: tRNA does not carry DNA molecules; translation involves using mRNA and tRNA to build proteins, but the first part is wrong.

So the correct option is a.

Answer:

a. An amino acid, a peptide chain