Which step happens first in translation?
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a. a trna molecule attaches to a codon.
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b. the amino acid pulls apart from trna.
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c. the amino acids form peptide bonds.
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d. the ribosome reaches the start codon.

A. A tRNA molecule attaches to a codon.

Explanation:

The first step of translation is that a tRNA molecule attaches to a codon. These tRNAs (transfer RNAs) bring the amino acids to the ribosome - rRNA complex, where they connect to the codons and are arranged into a full protein.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.