amino acid mRNA Cell membrane mutation cell wall nitrogenous base chloroplast nucleotide codon nucleus complementary polypeptide sequence control prokaryotic DNA protein enzyme replication eukaryotic ribosome genetic material RNA Hypothesis transcription independent variable translation tRNA mitochondria
amino acid Cell membrane cell wall chloroplast codon complementary control DNA enzyme eukaryotic genetic material Hypothesis independent variable mitochondria mRNA mutation nitrogenous base nucleotide nucleus polypeptide sequence prokaryotic protein replication ribosome RNA transcription translation tRNA