Biology News
What else the border wall would keep out: biodiversity - Big Think (blog)


Big Think (blog)
A new study, published in the journal BioScience, claims that over 1,500 species of flora and fauna would be eradicated if this wall is erected. To date, nearly 2,800 scientists have signed a petition stating that this sort of environmental destruction ...

TCR signal strength controls the differentiation of CD4 - Science


Science
T cell differentiation into effector and memory T cell subsets is influenced by T cell receptor (TCR) signals. Snook et al. examine how TCR signals influence CD4+ T cell differentiation using a panel of cloned TCRs that recognize the same MHC II ...

Cell Studio: Serious games for immunology - Phys.Org


Phys.Org
The novel platform, known as Cell Studio, can simulate an organic microenvironment with biological and biophysical rules at the cellular level. Several biological scenarios can be simulated, including a 2-D or 3-D spatial patch of tissue or cell ...

Cell Cycle - Tocris Bioscience

Bristol - United Kingdom

The cell cycle is the regulatory network that controls the order and timing of cellular proliferation events. It is divided into four stages, G1-S-G2-M. The G1 and G2 stages stands for 'GAP 1' and 'GAP 2' respectively. The S stage stands for 'Synthesis' and is the stage when DNA replication occurs. The M stage stands for 'mitosis', and is when nuclear and cytoplasmic division occurs, halving the genome.

Related
Landes Bioscience Journals: Cell Cycle
United States

Cell Cycle covers all topics from man to virus, from DNA to RNA, from aging to development, from cell senescence to stem cells, from apoptosis to autophagy, from cancer to neurobiology, from molecular and theoretical biology to medicine and therapy. Cell Cycle utilizes an online submission and tracking system designed to provide efficient service to authors. Through the online system, author files are automatically converted to PDFs, submissions

Tocris Bioscience: Signal Transduction
United Kingdom

Signal transduction (also known as cell signaling) is the transmission of molecular signals from a cell's exterior to its interior. Signals received by cells must be transmitted effectively into the cell to ensure an appropriate response. This step is initiated by cell-surface receptors.

Tocris Bioscience - Cardiovascular Research
United Kingdom

The cardiovascular, or circulatory, system is a closed elastic circuit consisting of the heart, blood vessels (arteries, capillaries and veins) and the blood. The primary function is to pump oxygenated blood to the tissues throughout the body and reabsorb waste carbon dioxide for its removal. This function is performed by the use of pulmonary and systemic circulation.

Cell Cycle Info
Canada

The cell cycle refers to the events that take place in a cell between its inception and subsequent replication. The cell cycle is composed of 4 distinct phases: G1 phase, S phase, G2 phase, and M phase. Interphase is a collective term that describes the G1, S, and G2 phases. During interphase, the cell is growing and preparing for mitosis (M phase) by accumulating nutrients and replicating DNA. The M phase is composed of 2 coupled processes calle

The Stages of the Cell Cycle
United States

The stages of cell division (G1, S, G2. mitosis) are described and illustrated with an animation of the cell cycle: - G1 and G2 stand for 'gaps'. This refers to the fact that nothing very obvious is occurring in the nucleus of the cells during these stages. The cells are actually very active. They are growing and preparing to divide. - S stands for synthesis. This is the phase of the cell cycle in which the DNA is copied or replicated. - M s

Cell Cycle and Mitosis Tutorial
United States

Includes images and a QuickTime animation of the process.

Yeast Cell Cycle Analysis Project
United States

Resource for information on yeast genes regulated over the cell division cycle, from Stanford University, California.

Ant Colony Cycle
United States

View photos and read explanations of the life and building cycle of an ant colony. Click on the images for additional details.

Germany

Photographic study following the process from mating to the emergence of the butterfly from the pupa.

The Morel Life Cycle
United States

An article by Tom Volk on this delicious fungus and attempts to cultivate it.