DNA (deoxyribonucl eic acid)
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (mRNA) by the enzyme RNA polymerase
RNA transcription
a substance that carries genetic information in the cells of plants and animals
Ribosomes any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes
Mitochondria any of the RNA-rich cytoplasmic granules that are sites of protein synthesis