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  2. Human cloning - Wikipedia

    en.wikipedia.org/wiki/Human_cloning

    Diagram of the ways to reprogram cells along with the development of humans. Human cloning is the creation of a genetically identical copy of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissue. It does not refer to the natural conception and delivery of identical twins

  3. Somatic cell nuclear transfer - Wikipedia

    en.wikipedia.org/wiki/Somatic_cell_nuclear_transfer

    The first being a female gamete, known as the ovum (egg/oocyte). In human SCNT experiments, these eggs are obtained through consenting donors, utilizing ovarian stimulation. The second being a somatic cell, referring to the cells of the human body. Skin cells, fat cells, and liver cells are only a few examples.

  4. Cloning - Wikipedia

    en.wikipedia.org/wiki/Cloning

    Human cloning is the creation of a genetically identical copy of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissues. It does not refer to the natural conception and delivery of identical twins. The possibility of human cloning has raised controversies. These ethical ...

  5. Development of the human body - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_human_body

    Human embryonic development refers to the development and formation of the human embryo. It is characterised by the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one-celled zygote to an adult human being.

  6. Adult stem cell - Wikipedia

    en.wikipedia.org/wiki/Adult_stem_cell

    Adult stem cells are undifferentiated cells, found throughout the body after development, that multiply by cell division to replenish dying cells and regenerate damaged tissues. Also known as somatic stem cells (from Greek σωματικóς, meaning of the body ), they can be found in juvenile, adult animals, and humans, unlike embryonic stem ...

  7. Reprogramming - Wikipedia

    en.wikipedia.org/wiki/Reprogramming

    During somatic cell nuclear transfer, the oocyte turns off tissue specific genes in the somatic cell nucleus and turns back on embryonic specific genes. This process has been shown through cloning, as seen through John Gurdon with the tadpoles [27] and Dolly the Sheep. [39] Notably, these events have shown that cell fate is a reversible process.

  8. Clone (cell biology) - Wikipedia

    en.wikipedia.org/wiki/Clone_(cell_biology)

    This process is referred to as clonal aging. Experiments by Smith-Sonneborn, [7] Holmes and Holmes [8] and Gilley and Blackburn [9] showed that accumulation of DNA damage is the likely cause of clonal aging in P. tetraurelia. This aging process has similarities to the aging process in multicellular eukaryotes (See DNA damage theory of aging).

  9. Molecular cloning - Wikipedia

    en.wikipedia.org/wiki/Molecular_cloning

    Molecular cloning takes advantage of the fact that the chemical structure of DNA is fundamentally the same in all living organisms. Therefore, if any segment of DNA from any organism is inserted into a DNA segment containing the molecular sequences required for DNA replication, and the resulting recombinant DNA is introduced into the organism from which the replication sequences were obtained ...