How is biological information stored, inherited, expressed and changed? Explore the structure and function of DNA, the organization of genomes and the mechanisms connecting genetic information to living systems.
Genetics and genomics are closely related fields, but they operate at different levels of biological organization and investigation.
Genetics studies genes, inheritance and genetic variation. It investigates how particular genetic changes influence traits, biological functions and patterns of inheritance across generations.
Genomics examines genomes at a broad scale, including their sequences, organization, variation and function. It often integrates data from many genes and genomic regions.
DNA sequences contribute to biological functions through the coordinated activity of regulatory elements, RNA molecules, proteins and cellular systems.
DNA stores genetic information in nucleotide sequences and contains coding and regulatory regions.
RNA polymerases synthesize RNA from DNA templates, producing transcripts with diverse cellular functions.
Ribosomes translate protein-coding messenger RNAs into polypeptides that undergo further processing.
Proteins and functional RNA molecules contribute to signaling, metabolism and gene regulation.
Explore five interconnected subject areas that provide a foundation for understanding genomic structure, regulation and diversity.
Modern genetics combines molecular experiments with computational methods to investigate the structure, variation and function of genetic material.
Sequencing determines the nucleotide order of DNA molecules. Depending on the approach, it can examine selected genomic regions, exomes or entire genomes.
Techniques such as reverse transcription quantitative PCR and RNA sequencing help researchers investigate RNA abundance and transcriptional patterns.
Genome editing approaches, including CRISPR-based systems, enable targeted genetic changes that can be used to investigate gene function.
Move from foundational concepts into focused scientific explanations that examine molecular mechanisms and experimental interpretation.
Explore transcription, RNA processing, translation and the mechanisms that regulate biological information flow.
The interpretation of genetic information depends on cellular context, molecular signaling and environmental conditions. Continue exploring how these systems interact across biological disciplines.