Q. 15.0( 2 Votes )

By which technolo

Answer :

De-extinction, or resurrection biology or species revivalism is the process of creating an organism, which is either a member of, or resembles an extinct species, or breeding population of such organisms.

The technologies that are used to re-create the extinct animals and plants in laboratory conditions are:


Cloning


Cloning is the method discussed as an option for bringing back extinct species, by extracting the nucleus from a preserved cell from the extinct species and swapping it into the egg of the nearest living relative. This egg can then be inserted into a relative host. It is important to note that this method can only be used when a preserved cell is available. This means that it is most feasible for recently extinct species.


Genome editing


With recent, rapid advances in genome sequencing and assembly, and gene editing with CRISPR-Cas9, it may soon be possible to insert relevant genes from extinct species into the genomes of their closest extant relatives. Germ cells may be edited directly, so that the egg and sperm produced by the extant parent species will produce offspring of the extinct species, or somatic cells may be edited and transferred via somatic cell nuclear transfer. Because it is possible to sequence and assemble the genome of extinct organisms from highly degraded tissues, this technique enables scientists to pursue de-extinction in a wider array of species, including those for which no well-preserved remains exist.


Selective breeding


Selective breeding is the process by which living relatives of the extinct species are identified and specifically mated to reproduce the traits of the extinct species. This method can recreate the traits of an extinct species, but the genome will differ from the original species.


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