Final answer:
Genomics primarily focuses on studying entire genomes, their sequences, organization, and interactions, while molecular biology encompasses various whole-genome methods and applications.
Step-by-step explanation:
The primary focus of genomics is to study entire genomes, which includes the complete set of genes, their nucleotide sequence and organization, and their interactions within a species and with other species.
This field, along with molecular biology, has made possible the advancements in our understanding of various biological systems and has a myriad of applications ranging from personalized medicine to the development of new biofuels.
Transcriptomics and proteomics are branches of genomics involved in the study of RNA transcripts and protein expressions, respectively, while other '-omics' like metabolomics, glycomics, and lipidomics focus on metabolites, sugars, and lipids within the cell. The integration of these fields has been crucial in systems biology and has led to the emergence of bioinformatics, necessary to analyze the large datasets produced.
Applications of genomic science also include studying drug interactions, predicting disease risk, improving agricultural practices, advancements in forensic science, and understanding environmental microorganisms. The growth in genomic technologies promises to provide a deeper understanding of genetic illnesses and broaden the scope of medical treatments.