Genomics is the study of genetic information encoded in an organism's DNA sequence. With the advancements in high-throughput sequencing technologies, enormous amounts of genomic data are being generated rapidly and cost-effectively. Genomics data analysis is a critical step in the interpretation of this wealth of data and plays a pivotal role in advancing our understanding of genetics and genomics. 

Transcriptome refers to the complete set of messenger RNA (mRNA) transcripts present in a cell or tissue at a particular time. These transcripts represent the genes that are actively being expressed and provide a snapshot of the cellular state at that moment. Transcriptomics is the study of the transcriptome and involves analyzing the expression levels, alternative splicing, and other post-transcriptional modifications of transcripts in different biological contexts. 

Metabolism refers to the complex set of biochemical reactions that occur within living organisms to sustain life. These reactions involve the conversion of molecules, such as carbohydrates, lipids, and proteins, into energy and other cellular components. Metabolism encompasses both catabolic reactions, which break down molecules and release energy, and anabolic reactions, which synthesize complex molecules and require energy.