Biology, asked by varshneydeekshpbek49, 1 year ago

name some methods of asexual reproduction in plants and explain them .

Answers

Answered by rkluthra1964
10

Vegetative Reproduction
Many plants have evolved specialized genetic features that allow them to reproduce without the aid of seeds or spores. Examples include the prostrate aerial stems of strawberries, the bulbs of tulips, the tubers of potatoes, the shoots of dandelions, and the keikis of orchids. This form of specialization is most common in environments with seasonally harsh conditions; it allows plants to survive and thrive in situations where the traditional seeding process is subject to frequent interruption.

Budding
Organisms like proteins, yeast, and some viruses reproduce via budding, a process by which an entirely new organism grows on an existing one. Unlike fission, this is not brought about by the separation of an existing organism into two partial entities. The developing organism begins its life as an entirely separate life form from its "parent", separating into an autonomous entity only when it has fully matured. As the "child" organism proceeds through life, it will produce its own buds.

Fragmentation
Segmented worms and many echinoderms such as starfish reproduce asexually via fragmentation. In this process, an organism physically splits and develops new, genetically identical organisms out of each segment. The segments rapidly grow new cells to constitute their muscle fiber and internal structure through mitosis. This split can be either intentional or unintentional on the part of the organism

Fission
Prokaryotes and some protozoa reproduce via binary fission. Fission occurs at the cellular level when a cell's contents are replicated internally and then subjected to division. The cell then forms into two distinct entities and separates itself. Each partial cell then reconstitutes the missing parts of its internal structure. At the end of the process, the single cell has become two new fully developed cells, each with identical genetic properties.

Answered by naz99
5

GOOD AFTERNOON

Asexual reproduction, which is a type of reproduction in which only one parent is involved. This is how the bacteria cell reproduces. With asexual reproduction, all of the genes come from a single parent, so the offspring are genetically identical to the parent. There are different ways organisms reproduce asexually. Let's take a look at some of the most common types.

Binary Fission

For many one-celled organisms, like bacteria, binary fission is the way to go. This is a type of asexual reproduction in which a cell divides into two cells. This is a fairly easy term to remember if you recall that the prefix 'bi' means two, like a bicycle has two wheels. The word 'fission' means dividing, so binary fission is literally dividing in two. When a bacterium is ready to reproduce, it makes a copy of its DNA and then splits, giving the copy to a newly formed and identical bacteria cell. This can be a very quick process allowing bacteria to multiply several times an hour if conditions are right. That means a single bacteria cell could grow into millions in less than a day. Fortunately, conditions for bacterial reproduction are rarely ideal or our world would be overrun by bacteria.

Fragmentation

Another type of asexual reproduction is called fragmentation. With this process, we see that an organism splits into pieces and each piece develops into a new organism. There are some creatures of the land and sea that will do this. For example, some worms have the ability to split in two and continue life as two separate worms. Likewise, you could slice a starfish into pieces and make new starfish. You can chop off a starfish's leg and as long as it has some of the central disc attached, it will regenerate into a new offspring.

Budding

Budding is another type of asexual reproduction. This happens when an organism forms a growth that develops into a new organism and then breaks off. For example, a cellular organism, like a yeast cell, can grow a bud filled with its own cells. That bud will stay attached until it's grown and developed. At that time it will drop off forming an identical offspring. We also see budding in some basic sea creatures, like some species of jellyfish. Jellyfish don't rely solely on asexual reproduction, but it is part of the process of making a new offspring. First a fertilized egg from jellyfish parents grows into a polyp that attaches itself to a rock. The polyp then grows genetically identical buds that get released and become new jellyfish

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