Cell cycle exit is when cells stop dividing and enter a quiescent state, also named G0. Cells exit the cell cycle in response to nutrient- or growth factor deprivation or in response to signals ...

Dec. 18, 2024 — Scientists have generated human stem cell models which contain notochord -- a tissue in the developing embryo that acts like a navigation system, directing cells where to build ...

Cell biology is the discipline of biological sciences that studies the structure, physiology, growth, reproduction and death of cells. Research in cell biology uses microscopic and molecular tools ...

See what you remember about this extraordinary year by taking our special 2024 news quiz. Compiled by The Learning Network “Elf,” “Home Alone” or “A Charlie Brown Christmas” — what ...

CD4 T helper cells are a type of white blood cell called a lymphocyte ... Antiretroviral drugs work by blocking stages in the virus' life cycle, preventing the virus from making copies of itself. The ...