Answer:
Transcriptomics is the study of the transcriptome, which is the complete set of all RNA transcripts produced by the genome in a given cell or tissue. This differs from genomics, which focuses on the study of the whole genome, and proteomics, which investigates the complete set of proteins produced in a given cell or tissue.
mRNA sequencing differs from sequencing genomic DNA in that mRNA sequencing specifically targets the messenger RNA (mRNA) molecules, which are transcribed from DNA and carry the genetic information necessary for protein synthesis. Genomic DNA sequencing, on the other hand, targets the entire genome, including non-coding regions and DNA sequences that do not code for proteins. mRNA sequencing is also used to measure gene expression levels, while genomic sequencing is primarily used for genome assembly and variant calling.
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