A scientist studies the formation of the protein hemoglobin. Arrange the labels to complete the steps for the formation of hemoglobin.
Label 1 to 4 please. If I get it correct I will mark brainliest!
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mRNA travels to a ribosome where its codons are "read"

amino acids released by tRNA form peptide bonds

DNA molecule is "unzipped" in nucleus

RNA polymerase is used to build a mRNA molecule