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Prior to protein synthesis, the DNA: attracts tRNAs with appropriate amino acids. serves as a template for the production of mRNA. adheres to ribosomes for protein synthesis. contains anticodons that become codons.

A single base mutation causes the amino acid leucine to replace tryptophan in the primary structure of a protein. The base in the DNA that changes to cause this mutation is: thymine. guanine. adenine. cytosine.

I have a graph from a potato cell lab report. There is a question that is as follows: 2. Use your graph to estimate the sucrose concentration that is isotonic to potato cell cytoplasm. All help is greeatly appreciated!