Regulation of Feeding Behaviors, Specialized Topics
Last Updated: October 20, 2025 The Brain as Master Regulator of Feeding Behaviors The brain, in particular the hypothalamus, plays highly critical roles in the regulation of energy metabolism, nutrient partitioning, and the control of feeding behaviors. The...
Cellular & Molecular Biology, Control of Gene Expression
Last Updated: October 23, 2025 Introduction to Control of Gene Expression The controls that act on gene expression (i.e., the ability of a gene to produce a biologically active protein) are much more complex in eukaryotes than in prokaryotes. A major difference is the...
Cellular & Molecular Biology, DNA, RNA, and Protein Metabolism
Last Updated: October 31, 2025 Introduction to DNA Structure, Functions, and Replication All cells undergo a process of DNA replication and a division cycle during their life span. Some cells are continually dividing (e.g. stem cells), others divide a specific number...
Diseases and Disorders, Diseases Associated with DNA Abnormalities, DNA Imprinting Disorders
Last Updated: October 31, 2025 Introduction to Imprinting Genomic imprinting refers to a genetic phenomenon whereby there is preferential expression of a gene from only one of the two parental alleles. This phenomenon of allele-specific expression results from...
Biochemistry Topics, Carbohydrate Metabolism, Energy Generating Processes
Last Updated: October 15, 2025 Introduction to Pyruvate Metabolism and the TCA Cycle The bulk of the ATP used by all cells (except mature red blood cells), to maintain homeostasis, is produced by the re-oxidation of the reduced electron carriers, NADH and FADH2,...
