This document discusses DNA metabolism and protein synthesis in plants. It covers topics of DNA replication, repair, and recombination. It then describes the process of eukaryotic DNA replication including origins of replication, helicase, DNA polymerase, and telomerase. Next it discusses transcription and translation, including the roles of the nucleus, promoter, enhancer, silencers, RNA polymerase, RNA modification, and ribosomes. Alternative splicing and its role in regulating gene expression under stress in plants is also mentioned. The document concludes with a brief overview of the Arabidopsis thaliana genome.