Scientists now believe the Miller-Urey experiment was not an accurate depiction of the conditions on early Earth. What reasonable inference could be made about this experiment? A. It demonstrated that a hypothesis other than Miller-Urey is correct.

B. It showed that reactions for the origins of life could have occurred in a similar way.

C. Because it produced 13 amino acids out of 20, it signaled the hypothesis is most likely correct.

D. Because only 13 amino acids were produced, it suggested that not all of today's elements were present in early Earth conditions.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein