Question Video: Identifying the Method of Cell Division Used in Asexual Reproduction | Nagwa Question Video: Identifying the Method of Cell Division Used in Asexual Reproduction | Nagwa

Question Video: Identifying the Method of Cell Division Used in Asexual Reproduction Science • Third Year of Preparatory School

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Animals rarely reproduce asexually. An example of one that can is the flatworm 𝑝𝑙𝑎𝑛𝑎𝑟𝑖𝑎. When it is cut into two pieces, each fragment regrows into a new individual. Which type of cell division is used to do this?

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Video Transcript

Animals rarely reproduce asexually. An example of one that can is the flatworm 𝑝𝑙𝑎𝑛𝑎𝑟𝑖𝑎. When it is cut into two pieces, each fragment regrows into a new individual. Which type of cell division is used to do this?

This question concerns a species of animal that is able to reproduce asexually and asks us to determine the type of cell division that is required for this process. Remember, reproduction is the process by which an organism, or organisms, produce offspring. Some important, distinguishing features of asexual reproduction are that it only involves one parent and produces offspring that are genetically identical to that parent.

Regeneration is a process that can be used to repair or regrow damaged or missing parts and by certain animals like the flatworm 𝑝𝑙𝑎𝑛𝑎𝑟𝑖𝑎 for asexual reproduction. The question presents us with the scenario of 𝑝𝑙𝑎𝑛𝑎𝑟𝑖𝑎 being cut into two pieces. If the worm is cut into two fragments, the cells in each part of the split organism will undergo many rounds of mitosis to recreate the lost portion.

Mitosis is a type of cell division where one cell divides to produce two new cells that are genetically identical. As a result, each fragment regrows into a new individual flatworm, which is genetically identical to the one produced from the other fragment. Regeneration can also occur in some species, such as starfish, to regrow structures like limbs. This occurs in a similar manner to what we have just explored through many mitotic divisions.

This means that we have found the correct answer to this question. The type of cell division used when a 𝑝𝑙𝑎𝑛𝑎𝑟𝑖𝑎 flatworm is cut into two pieces so that each fragment can regrow into a new individual is mitosis.

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