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Describe how new plants arise by asexual reproduction

Question

Describe how new plants arise by asexual reproduction

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Solution

Asexual reproduction in plants occurs when a new plant is produced from a single parent, without the involvement of sex cells or gametes. Here are the steps:

  1. Budding: In this process, a new plant grows out of a bud on the parent plant. The bud eventually detaches itself from the parent plant to live independently. This is common in yeast and hydras.

  2. Fragmentation: In this process, a new plant grows from a fragment of the parent plant. This is common in plants like moss and lichens.

  3. Spore Formation: Some plants reproduce by releasing spores, which are cells that can grow into a new organism. Ferns and fungi reproduce this way.

  4. Vegetative Propagation: This is a type of asexual reproduction where new plants grow from the roots, stems, leaves, or other parts of the parent plant. This is common in plants like potatoes, strawberries, and onions.

  5. Apomixis and Polyembryony: In apomixis, seeds are formed without fertilization and the seedlings are genetically identical to the parent. In polyembryony, multiple embryos are formed in a single seed.

  6. Artificial Methods: Humans have developed methods to artificially propagate plants asexually, such as grafting, layering, tissue culture, etc.

In all these methods, the offspring are genetically identical to the parent plant, which is a characteristic feature of asexual reproduction.

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Asexual reproduction differs from sexual reproduction in thatMultiple Choiceasexual reproduction produces genetically diverse offspring.asexual reproduction utilizes DNA from two parents to code for traits in offspring.asexual reproduction occurs only in plants.asexual reproduction produces offspring containing DNA from only one parent.asexual reproduction only occurs in animals.

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