Year: 2022

ASEXUAL BINARY FISSION is where every organ is copied as the cell divides in two. Examples include bacteria and protists. “Binary fission, asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.” https://lnkd.in/dkDex6F View in LinkedIn

FISSION ACROSS TAXA. “Regular transverse fission in some organisms, such as tapeworms and scyphostome polyps, is called strobilation. Commonly, this results in a chain, called a strobilus, of the fission products—the proglottids of tapeworms and the ephyrae of scyphozoan jellyfish; each proglottid or ephyra matures in turn and separates from the end of the strobilus.” https://lnkd.in/dkDex6F View in LinkedIn

METAZOAN FISSION. “A few metazoan (multicellular) species regularly undergo a body division into several units simultaneously, a process called fragmentation. Planarian fission and fragmentation generally represent direct reproduction in which each portion regenerates missing parts to become a complete new animal. Strobilation products, however, are only indirectly reproductive: proglottids are not regenerative but carry and release great numbers of eggs and die; ephyrae do not produce new polyps but mature into sexually reproducing medusae, the larvae of which become polyps.” https://lnkd.in/dkDex6F View in LinkedIn

PROTOZOAN BINARY FISSION video in real life. Beautiful and dramatic view of two spaceships of protoplasm dividing. https://lnkd.in/ejfE_vZ View in LinkedIn

MICRASTERIAS binary division time lapse. https://lnkd.in/enGHqVS View in LinkedIn

NOT SIMPLE. "Most bacteria rely on binary fission for propagation. Conceptually this is a simple process; a cell just needs to grow to twice its starting size and then split in two. But, to remain viable and competitive, a bacterium must divide at the right time, in the right place, and must provide each offspring with a complete copy of its essential genetic material." https://lnkd.in/eqsJf6Q View in LinkedIn

MANY VARIATIONS. "Bacteria must divide to increase in number and colonize their niche. Binary fission is the most widespread means of bacterial cell division, but even this relatively simple mechanism has many variations on a theme." https://lnkd.in/ekafuxD View in LinkedIn

BEWARE FRAUDSTER: Ghalawanji Omar Ibrahim. View in LinkedIn

FISSION MECHANICS. "Before binary fission occurs, the cell must copy its genetic material (DNA) and segregate these copies to opposite ends of the cell. Then the many types of proteins that comprise the cell division machinery assemble at the future division site. A key component of this machinery is the protein FtsZ. Protein monomers of FtsZ assemble into a ring-like structure at the center of a cell. Other components of the division apparatus then assemble at the FtsZ ring." https://lnkd.in/eqsJf6Q View in LinkedIn

FISSION MECHANICS CONTINUED. "This machinery is positioned so that division splits the cytoplasm and does not damage DNA in the process. As division occurs, the cytoplasm is cleaved in two, and in many bacteria, new cell wall is synthesized. The order and timing of these processes (DNA replication, DNA segregation, division site selection, invagination of the cell envelope and synthesis of new cell wall) are tightly controlled." https://lnkd.in/eqsJf6Q View in LinkedIn