A Levels Biology (9700)•9700/12/M/J/24

Explanation
Evaluating Statements on Peptide Bond Formation
Steps:
- Statement 1 correctly identifies the peptide bond as forming between the carboxyl carbon of one amino acid and the amino nitrogen of the next, creating a covalent amide linkage.
- Statement 2 accurately describes the site and context: peptide bonds form via peptidyl transferase at the ribosome during translation, with amino acids esterified to tRNA molecules.
- Statement 3 incorrectly labels the process as hydrolysis, which adds water to break bonds; formation is actually condensation (dehydration synthesis), removing water, so the statement is false overall.
- Since only statements 1 and 2 are correct, but no option lists them together, the question options are incomplete.
Why no option is fully correct:
- Options assume combinations including the flawed statement 3 or exclude statement 1.
Final answer: 1 and 2 (not listed)
Topic: Protein synthesis
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