Cloning

Created by: Darlene B
Created on: 25-04-15 00:08

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

Front

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

Card 4

Front

Describe the process of micropropagation

Back

Card 5

Front

Advantages and disadvantages of plant cloning in agriculture

Back

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Cloning