L.6 H.Biology (T) “GENE EXPRESSION” Dr.Riad.pdf

Albayan University ‫تحليالت‬ H. Biology 1st year 13th6 lec. F2 2020-2021 2023-2024 Dr. Riad 25-5-2021 GENE EXPRESSION Two steps are required 1. Transcription The synthesis of mRNA uses the gene on the DNA molecule as a tem...

Albayan University ‫تحليالت‬ H. Biology 1st year 13th6 lec. F2 2020-2021 2023-2024 Dr. Riad 25-5-2021 GENE EXPRESSION Two steps are required 1. Transcription The synthesis of mRNA uses the gene on the DNA molecule as a template This happens in the nucleus of eukaryotes 2. Translation The synthesis of a polypeptide chain using the genetic code on the mRNA molecule as its guide. RIBONUCLEIC ACID (RNA) Found all over the cell (nucleus, mitochondria, chloroplasts, ribosomes and the soluble part of the cytoplasm). Types Messenger RNA (mRNA)