Medical research

Killing 'sleeper cells' may enhance breast cancer therapy

The anti-cancer medicine venetoclax could improve the current therapy for estrogen receptor-positive (ER+) breast cancer—the most common form of breast cancer in Australia—according to preclinical studies led by Walter ...

Oncology & Cancer

Researchers find new insights linking cell division to cancer

To replace aging and worn cells, the body primarily uses a process called mitosis, in which one cell divides into two. When a cell is ready to divide, it duplicates its DNA so a complete copy is available for each of the ...

Medical research

Heart cells can rejuvenate and multiply to heal damage

UT Southwestern Medical Center scientists have discovered a protein that works with others during development to put the brakes on cell division in the heart, they report today in Nature. The findings could eventually be ...

Medical research

Cannabis helps fight resistant bacteria

Since the discovery of penicillin in 1928 by Sir Alexander Fleming, antibiotics have saved millions of lives from fatal infections world-wide. However, with time bacteria have developed mechanisms to escape the effects of ...

Genetics

Scientists link rapid brain growth in autism to DNA damage

Researchers at the Salk Institute have discovered a unique pattern of DNA damage that arises in brain cells derived from individuals with a macrocephalic form of autism spectrum disorder (ASD). The observation, published ...

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Cell division

Cell division is a process by which a cell, called the parent cell, divides into two or more cells, called daughter cells. Cell division is usually a small segment of a larger cell cycle. This type of cell division in eukaryotes is known as mitosis, and leaves the daughter cell capable of dividing again. The corresponding sort of cell division in prokaryotes is known as binary fission. In another type of cell division present only in eukaryotes, called meiosis, a cell is permanently transformed into a gamete and cannot divide again until fertilization. For simple unicellular organisms such as the amoeba, one cell division is equivalent to reproduction-- an entire new organism is created. On a larger scale, mitotic cell division can create progeny from multicellular organisms, such as plants that grow from cuttings. Cell division also enables sexually reproducing organisms to develop from the one-celled zygote, which itself was produced by cell division from gametes. And after growth, cell division allows for continual construction and repair of the organism. A human being's body experiences about 10,000 trillion cell divisions in a lifetime.

The primary concern of cell division is the maintenance of the original cell's genome. Before division can occur, the genomic information which is stored in chromosomes must be replicated, and the duplicated genome separated cleanly between cells. A great deal of cellular infrastructure is involved in keeping genomic information consistent between "generations".

This text uses material from Wikipedia, licensed under CC BY-SA