Cloning

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How are natural clones of plants produced?
Vegetative propagation:Aesexual. Rootsucker grows after main trunk destroyed. Grow from meristem tissue close to ground where least damaged
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Advantages and disadvantages of vegetative propagation/aesexual reproduction
ADV: Fast, used if sexual fails, all genetically identical to survive. DIS: Genetically similar so disease= no variation
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How are artificial clones of plants produced by tissue culture?
Taking cuttings or grafting. Cuttings: Mass production. Section of stem cut between leaf joints(nodes) treated with hormones,planted. Grafting: Shoot of woody plant joined to already growing.
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Describe the process of micropropagation
Explant taken from plant-placed in nutrient medium-cells divide to form callus-single callus removed and placed in medium for shoot growth- plant shoot placed in another medium for root growth- greenhouse then outside
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Advantages and disadvantages of plant cloning in agriculture
ADV: Farmers sure of what will be produced, cheaper as harvest time the same. DIS: Susceptible to same diseases
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How can artificial clones of animals be produced?
Spitting embryos and Nuclear transfer. Splitting: Cells from developing embryo separated and given to surrogates. Nuclear: Differentiated cell placed in enucleated egg by fusion. Culture in sheep 3, grown in sheep 4
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What are the advantages and disadvantages of cloning animals?
ADV: High value animals, rare cloned to preserve, pharmaceutical chemicals. DIS: Animal welfare with high production, hard to adapt to environmental changes, Health as come from adult cells eg Dolly
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What are the differences between reproductive and non reproductive cloning?
Non:Generate cells to repair cardiac tissues, spinal chords etc- for organs not offspring. Less chance of rejection
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Other cards in this set

Card 2

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Advantages and disadvantages of vegetative propagation/aesexual reproduction

Back

ADV: Fast, used if sexual fails, all genetically identical to survive. DIS: Genetically similar so disease= no variation

Card 3

Front

How are artificial clones of plants produced by tissue culture?

Back

Preview of the front of card 3

Card 4

Front

Describe the process of micropropagation

Back

Preview of the front of card 4

Card 5

Front

Advantages and disadvantages of plant cloning in agriculture

Back

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