Your class is learning about genetic engineering and the use of model organisms. You are divided into groups to debate this topic. Construct a statement defending the use of model organisms, such as the zebrafish, in this research.

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Explanation:

Genetic engineering involves manipulation of genetic material of an organisms to get desired characteristics.

Model organisms are those organisms that have been extensively studied to understand a specific biological phenomenon, because of having similar genetic constitution to other complex organisms. These organisms are easy to breed and maintain in laboratory conditions and thus, are having experimental advantages.

For example, zebra fish is used as model organism for humans. They share about 70% genetic material with humans and 84 % of humans genes, associated with diseases have counterpart in zebra fish are common. They have same major tissues and organs as found in humans, such as kidney, eyes, muscle, and blood.

Thus, zebra fish is a good choice to use a model organism in genetic engineering.

b a mature ovary of a plant.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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