RNA and Protein Synthesis

13.4 How do cells regulate gene expression? 13.3 What happens when a cell’s DNA changes? 13.1 What is RNA? 13.2 How do cells make proteins? WHAT I KNOW SAMPLE ANSWER: RNA is a nucleic acid that carries coded genetic information. SAMPLE ANSWER: RNA contains the sugar ribose and the nitrog-enous base uracil instead of thymine. It is usually a ... ................
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