Fission (biology)

In biology, fission is the division of a cell (or body, population, or species) into two or more parts and the regeneration of those parts into separate cells (bodies, populations, or species). Binary fission produces two separate cells, populations, species, etc., whereas multiple fission produces more than two cells, populations, species, etcetera

Binary fission of prokaryotes

Prokaryotic fission, which is binary fission, is a form of asexual reproduction and cell division used by all prokaryotes (bacteria and archaebacteria) and some organelles within eukaryotic organisms (e.g., mitochondria). This process results in the reproduction of a living prokaryotic cell (or organelle) by dividing into two parts that each have the potential to grow to the size of the original cell (or organelle). This type of division takes place without the formation of spindles in the cell. The single DNA molecule first replicates, then attaches each copy to a different part of the cell membrane. When the cell begins to pull apart, the replicated and original chromosomes are separated. The consequence of this asexual method of reproduction is that all the cells are genetically identical, meaning that they have the same genetic material (barring random mutations).

Biology

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, and taxonomy. Modern biology is a vast and eclectic field, composed of many branches and subdisciplines. However, despite the broad scope of biology, there are certain general and unifying concepts within it that govern all study and research, consolidating it into single, coherent fields. In general, biology recognizes the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels the synthesis and creation of new species. It is also understood today that all organisms survive by consuming and transforming energy and by regulating their internal environment to maintain a stable and vital condition.

Subdisciplines of biology are defined by the scale at which organisms are studied, the kinds of organisms studied, and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions among biological molecules; botany studies the biology of plants; cellular biology examines the basic building-block of all life, the cell; physiology examines the physical and chemical functions of tissues, organs, and organ systems of an organism; evolutionary biology examines the processes that produced the diversity of life; and ecology examines how organisms interact in their environment.

Biology (journal)

Biology is a quarterly, peer-reviewed, open access, scientific journal covering research on all aspects of biology. It was established in 2012 and is published by MDPI. The editor-in-chief is Chris O'Callaghan (University of Oxford). The journal publishes reviews, research papers, and communications.

Subject Areas

This journal covers all topics related to biology. More detail about the journal and its scope is available in the first editorial. Research fields of interest include, but are not limited to:

Biology: The Unity and Diversity of Life

Biology: The Unity and Diversity of Life is a college-level introductory biology textbook that covers basic biochemistry, anatomy, taxonomy, evolution, biotechnology and ecology. The book is designed to create in students a broad foundation of knowledge in biology and is frequently used in AP Biology classes in American high schools. Each book includes an interactive CD-ROM with links to additional instructional material. Like many textbooks new versions are printed every few years and reflect new gains in scientific knowledge. The book is published by Brooks/Cole and is currently in its twelfth edition. It was primarily compiled by Cecie Starr and Ralph Taggart with pictures and illustrations by Lisa Starr.

The book was translated into few languages, among others into Hebrew, published by the Open University of Israel.

External links

Fission

Fission, a splitting of something into two or more parts, may refer to:

Music

See also

Fission (album)

Fission is a studio album by keyboardist Jens Johansson, released in 1997 through Heptagon Records (Europe); February 18, 1998 through Pony Canyon (Japan); and on March 24, 1998 through Shrapnel Records (United States). According to Johansson, the album went through an extremely troubled recording process due to several mishaps with Andy West's bass parts, which ultimately never made the album. On his website, Johansson also revealed that the indistinct image on the cover art is actually a heavily zoomed-in section of ice on a car window.

Track listing

All songs written and composed by Jens Johansson. 

Personnel

References

External links

Fission (band)

Fission is a Swedish melodic death metal band formed in 2002. The band began as Benny Hägglund's personal project, with the hopes of fusing melody and aggression into his music. After writing some material, he decided to seek aid from Andreas Hedlund of Vintersorg, the band in which Hägglund plays live session drums. After recording a two-track demo with Benny handling all instrumentation and Andreas handling vocal duties, they signed on with Austrian label, Napalm Records. Benny continued writing all of the songs for their first full-length, while Andreas provided all of the lyrics, vocals, keyboards, and sound effects. They released their first full-length album, Crater, on April 27, 2004.

Discography