Related Experiment Video
Updated: Jul 7, 2026
13:36
Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT
Published on: September 30, 2010
[Achievements and problems in cloning and making transgenic mammals]
Tsitologiia I Genetika
|October 16, 2002
Summary
Nuclear transfer cloning in mammals offers agricultural, biomedical, and conservation benefits but faces challenges in efficiency and ethics. Future applications require addressing these limitations for successful implementation.
Area of Science:
- Reproductive biology
- Animal biotechnology
- Conservation genetics
Context:
- Mammalian nuclear transfer is a key technology for cloning.
- Applications span agriculture, biomedical research, and biodiversity conservation.
- The technique's current status and limitations are under examination.
Purpose:
- To analyze the current applications of nuclear transfer in mammalian cloning.
- To discuss the inherent complexities, inefficiencies, and ethical concerns.
- To evaluate the future prospects of this technology.
Summary:
- Nuclear transfer enables mammalian cloning for diverse applications, including agriculture, biomedicine, and biodiversity restoration.
- Significant challenges include method complexity, low efficiency rates, and ethical considerations.
- Future prospects depend on overcoming these technical and ethical hurdles.
Impact:
- Provides insights into the practical utility and limitations of mammalian cloning.
- Highlights critical areas for research and development in reproductive technologies.
- Informs discussions on the ethical and societal implications of cloning.
Related Concept Videos
00:53Transgenic Organisms
Overview
01:27Reproductive Cloning
Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic cell—any cell that is not a sex...
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic cell—any cell that is not a sex...
00:53Transgenic Organisms
Overview
02:50Transgenic Plants
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
01:14Introduction to Nuclear Reprogramming
Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
01:08Cloning of Dolly the Sheep
The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter telomeres than other...