Question

which statement describes the first step of protein synthesis? (1 point)
dna unwinds between the base pairs.
a ribosome attaches to the mrna.
amino acids are linked together with peptide bonds.
trna attaches amino acids to the mrna strand.

Explanation:

Protein synthesis has two main steps: transcription and translation. Transcription is the first step. In transcription, DNA unwinds between base pairs so that one strand can be used as a template to synthesize mRNA. The other options describe events in translation (ribosome - mRNA attachment, tRNA - amino acid - mRNA interaction, and amino acid - peptide bond formation) which occurs after transcription.

Answer:

DNA unwinds between the base pairs.