Describe the different methods of asexual reproduction. Give examples.
Answers
Asexual reproduction involves a single parent. It results in offspring that are genetically identical to each other and to the parent. All prokaryotes and some eukaryotes reproduce this way. There are several different methods of asexual reproduction. They include binary fission, fragmentation, and budding.
Binary fission occurs when a parent cell splits into two identical daughter cells (Links to an external site.) of the same size.
Fragmentation occurs when a parent organism breaks into fragments, or pieces, and each fragment develops into a new organism. Starfish reproduce this way. A new starfish can develop from a single ray, or arm. Starfish, however, are also capable of sexual reproduction.
Budding occurs when a parent cell forms a bubble-like bud. The bud stays attached to the parent cell while it grows and develops. When the bud is fully developed, it breaks away from the parent cell and forms a new organism. Budding in yeast is shown in Figure below (Links to an external site.).
Illustrates binary fission in single-celled organisms and multiple fission in multinucleated cells
Binary Fission in various single-celled organisms (left). Cell division is a relatively simple process in many single-celled organisms. Eventually the parent cell will pinch apart to form two identical daughter cells. In multiple fission (right), a multinucleated cell can divide to form more than one daughter cell. Multiple fission is more often observed among protists. In fission (or binary fission), a parent separates into two or more individuals of about equal size. This type of reproduction is common among single-celled organisms including bacteria, archaea (Links to an external site.), and unicellular eukaryotes, such as protists and some fungi (Links to an external site.). The single cell divides into two daughter cells.Starfish and yeasts are examples of organisms that reproduce asexually
Starfish reproduce by fragmentation and yeasts reproduce by budding. Both are types of asexual reproduction.
In fragmentation, a body breaks into several fragments, which later develop into complete organisms. For example, a new starfish can develop from a single ray, or arm. In addition to starfish, this type of reproduction is common among some worms, fungi (Links to an external site.) and plants. Many of these organisms are also capable of sexual reproduction. Most lichens, which form from a symbiotic relationship between a fungus and photosynthetic algae (Links to an external site.) or bacteria, reproduce through fragmentation. This ensures that new individuals contain both symbionts.
Vegetative reproduction is a type of asexual .
1.Fission: A parent cell divides into two or more cells. Example: Amoeba
2.Fragmentation: The parent’s body dic=vides into fragments and the fragment grows into a new organism. Example: spirogyra
3.Regeneration: If a part of the body is lost then it can grow again into a new one. Example a lizard’s tail
4.Budding: The buds formed on the individual grow into a new organism then detaches from the parent organism. Example: Hydra
5.Vegetative propagation: Plants reproduce asexually through their vegetative parts such as leaves, roots, stem, and buds.
6.Spore formation: Organisms which belong to the fungi group produce spores within a sac-like structure called sporangium