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Is binary fission an example of asexual reproduction in eukaryotes


Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves.

Another term for the process is cellular cloning. Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism.

Binary fission is different from mitosis because prokaryotic cells do not have a true nucleus like eukaryotes. Also, there is no mitotic spindle formation in the nucleus during binary fission. However, the processes are similar in that the organism or cell first duplicates its DNA and then divides into two parts in a process known as cytokinesis.

Eukaryotes can suffer from a...

Binary fission is the process by which a single-celled organism creates an exact copy of itself. There are four main types of binary fission based on where the organism divides itself. Paramecia and planarians slime molds use transverse binary fission.

Some types of slime molds can have more than one fission simultaneously and divide into several daughter cells. Slime molds can also use sexual reproduction when necessary, such as to create more genetic diversity in a new environment. Paramecia can switch back and forth the between asexual and sexual reproduction as well.

Binary fission, asexual reproduction by...

Oblique binary fission is used by organisms in the genus Ceratium marine dinoflagellates where the separation occurs obliquely or on a slant. Binary fission has steps that are similar to mitosis see Mitosis section below.

The DNA uncoils, duplicates and is pulled to opposite poles in the bacterium in an energy-dependent process. During this time, the organism increases in size to prepare for division.

Binary fission ("division in half")...

Finally, a cleavage furrow develops in the cell membrane and the two individual cells separate from each other. Eukaryotes can suffer from a lack of genetic diversity due to asexual reproduction via binary fission. Over time, natural selection has pressured these organisms to develop ways to exchange bits of DNA with other organisms to introduce some genetic diversity.

Binary fission, asexual reproduction by...

The three methods are transformation, transduction and conjugation. In transformation, prokaryotes pick up small pieces of DNA that other prokaryotes have shed into the environment. Transduction occurs as a consequence of the actions of bacteriophages, which can transfer small pieces of DNA from one bacteria to another during the course of infecting them. The image above shows the single-celled organism Entamoeba histolytica undergoing binary fission.

The process of mitosis consists of six major steps and results in two identical daughter cells. It is different from meiosis which is used to create sex cells for sexual reproduction. Prior to mitosis beginning, the cell has already copied its chromosomes and the proteins that will create the mitotic spindle were created during the step called interphase.

This form of asexual reproduction...

During prophase, the chromosomes coil up tightly and appear thicker. The nuclear membrane starts to break down and the spindle fibers start to form from the proteins created earlier. Metaphase is characterized by the chromosomes lining up across the midline of the cell and attach to the spindle fibers.

In this phase, each pair of chromatids separates into two identical chromosomes. The spindle fibers then pull each set of chromosomes to opposite ends of the cell.

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