Nurturing Life Sciences
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#Id: 10312
#Unit 4. Cell Communication and Cell Signaling
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#Unit 5. Developmental Biology
At lower concentrations of activin, genes were not activated, and the “default” gene expression instructed the cells to become blood vessels and heart.
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#Unit 3. Fundamental Processes
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#Unit 11. Evolution and Behavior
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When several codons encode the same amino acid and utilize multiple tRNAs, not all of the codons are used with equal frequency. In a phenomenon called codon bias.