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CLONING image - Coggle Diagram
CLONING
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ADVANTAGES
We can predict that clone will be like the donor when cloning from adult cells, through sexual reproduction it is difficult to tell what offspring will look like...
Cloning can be done for tissue and organ transplantation, using patients own cells, so there is no room for rejection in recepient's body [not reality but a promise]
Domestic animals can be genetically designed to be a model and help with study/treatment of human illnesses.
Somatic nuclear transfer can help endangered species with low reproductive rates. (eg panda)
Reprogramming cancer cells to differentiate is a good therapy to help stop spread of cancer cells/growth of tumors.
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NATURAL REPRODUCTION
Two gametes; sperm from male and egg cell female, both fuses during fertilization to create one individual
Each gamete contains half of the chromosomes (haploids) of normal cells (diploids), to create an individual
Chromosomes found in nucleus of cells, holds the DNA (genetic blueprint)
DISADVANTAGES
Clones can suffer from mutations due to radiation, chemicals, aging, or DNA replication errors, which was transferred from donor cell
Difficulty in distinguishing a normal donor cell from a mutant cell.
Ability to distinguish an abnormal embryo before transfer to uterus is poor
Lifespan of clone is difficult to predict and is usually unknown
Selection of fittest germ cells during fertilization does not exist in cloning (therefore difficulty in cloning perfect human beings)
GENETIC REPROGRAMMING
Cloning reprograms the nuclear function and changes state to undifferentiated in some nuclei
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This technology can be used to reprogram cells for specific types of cells for tissue repair in humans.