Variation, reproduction and new technology

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  • Created by: Sam Evans
  • Created on: 17-05-14 11:28
How is genetic information passed from parents to offspring?
The gametes nucleus contains genetic information which is passed on to the offspring
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Suggest which humans could be described as nutural clones?
Identical twins
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Plant Clones are genetically identical. Why do some clones look different?
During the development of the organism it may be changed due to environmental reasons such as amount of light or nutrients
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What is meant by a host animal?
An animal which holds the transplant embryo so it can develop
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What is done to the fused cell to start off the process of cell division in adult cell cloning?
The cell is given an electric shock
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Why are you similar to both your parents, but not identical to either of them?
Offspring inherit genes from both parents meaning a mixture of genetic information so you will have characteristics from both parents
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In what way are the embryo transplants similar to what happens when identical twins form?
A single embryo splits into two formings twins. In cloning the embryo is split into several groups of cells
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How are calf embryos cloned?
After sexual reproduction, a single embryo is produced. Before the cells specialise the embryo is split into several groups of cells . Each group is transplanted into a different host mother. The calves born are all genetically identical
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Why is embryo cloning sometimes used by cattle breeders rather than letting the cattle breed naturally?
Award wining animals can be cloned quicker and cheaper and in large numbers
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Outline the process of genetic engineering?
A gene is cut from a chromosome of an organism using an enzyme The gene is then transferred to the chromosome of another organism. The gene then controls the development of a characteristic in the second organism
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Give two advantages of genetic engineering
Genetic disorders can be treated and antibodies can be prduced to treat disease
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How are crops genetically modified?
A gene is transferrred from another organism into the chromosome of the crop plant
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Card 2

Front

Suggest which humans could be described as nutural clones?

Back

Identical twins

Card 3

Front

Plant Clones are genetically identical. Why do some clones look different?

Back

Preview of the front of card 3

Card 4

Front

What is meant by a host animal?

Back

Preview of the front of card 4

Card 5

Front

What is done to the fused cell to start off the process of cell division in adult cell cloning?

Back

Preview of the front of card 5
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