Epigenome
The "epigenome" is a parallel to the word "genome", and refers to the overall epigenetic state of a cell. The phrase...
Epigenetics
Epigenetics is the study of heritable changes in phenotype (appearance) or gene expression caused by mechanisms other than changes in the...
Urea Cycle
The urea cycle (also known as the ornithine cycle) is a cycle of biochemical reactions occurring in many animals that produces...
Hershey Chase Experiment
The Hershey–Chase experiments were a series of experiments conducted in 1952[1] by Alfred Hershey and Martha Chase, which helped to confirm...
Griffith's experiment
Griffith's experiment, conducted in 1928 by Frederick Griffith, was one of the first experiments suggesting that bacteria are capable of transferring...
Lac Operon Animation
The lac operon is an operon required for the transport and metabolism of lactose in Escherichia coli and some other enteric...
Cell Signals Animation
Cell signaling is part of a complex system of communication that governs basic cellular activities and coordinates cell actions. The ability...
DNA Repair
DNA repair refers to a collection of processes by which a cell identifies and corrects damage to the DNA molecules that...
NER pathway Animation
Nucleotide excision repair is a DNA repair mechanism. DNA constantly requires repair due to damage that can occur to bases from...
How The Cell Cycle Works
The cell cycle consists of four distinct phases: G1 phase, S phase, G2 phase (collectively known as interphase) and M phase....
SMELLING AND TASTING
If you can't smell, you probably can't taste very well either. They are closely related functions.Receptor cells for taste and smell...
Secretory Pathway Animation
The secretory pathway is a series of steps a cell uses to move proteins out of the cell; a process known...
Cell Cycle Control
The cell cycle, or cell-division cycle, is the series of events that take place in a eukaryotic cell leading to its...
Monoclonal Antibodies-Lecture
Ronald Levy is an American medical doctor and scientist at Stanford University. He specializes in lymphoma, including Non-Hodgkin's Lymphoma, Burkitt's Lymphoma...
Human Suprachiasmatic Nucleus
The suprachiasmatic nucleus (SCN) is a bilateral region of the brain, located in the hypothalamus, that is responsible for controlling endogenous...
Neutrophil Adhesion Migration and Phagocytosis
A neutrophil travels along the capillary endothelial layer. Endothelial cells are triggered to express selectins on their surface for neutrophil integrin-mediated...
