Cloning in Animals Organisms that are genetically identical are clones Asexual Reproduction always produces clones Laboratory Techniques have been developed that have allowed this to happen in Animals
Wishful Thinking!!!
Cloning in Plants Plant Cloning Cells of many plant species can be regenerated to whole plants (totipotency)
Heres Dolly!!! Wilmut et al. Produced “Dolly” in 1997 Used Genetic Information Taken from Udder of Adult Sheep In order for differentiated cells to be cultured to produce an undifferentiated embryo the process of Cell Differentiation had to be reversed.
Cloning - Steps Unfertilized Eggs Collected from a donor sheep and had nuclei removed From 2 nd Animal removed a sample of Udder cells. These Cells were cultured and had cell cycle arrested during the G Phase Nuclei from Udder Cells Transplanted into the egg cells. Resulting Cells were cultured and a few began to divide. These early embryos implanted into a surrogate mother. One of these developed into a Lamb – Dolly DNA Tests confirmed that the Lamb was identical Genetically to the Sheep that had provided the Udder Cells
Problems Other Researchers have repeated the work but as more examples are created there is evidence that there are health problems associated with the Cloned Animals. Dolly showed signs of Premature Aging.
Human Cloning Very Controversial Topic Difference Between: Therapeutic Cloning – Culturing of Human Cells for use in Treating Medical Disorders Reproductive Cloning – Development of a cloned human embryo for the purpose of creating a cloned Human Being
Controversy Proponents of Therapeutic Cloning argue that this may provide key to eliminating Disease Yet all means of cloning does result in the creation and destruction of hundreds of embryos. Cloning Technologies have the potential to change the definition of life.