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Application of Biotechnology - Lesson Summary

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The Key Contents from this Module are:

DNA Cloning and Gene Expression Systems are used for producing large quantities of a chosen protein.

Steps involved in Gene Sequencing are:

Cut the DNA from many copies of an entire chromosome into overlapping fragments short enough for sequencing.
Clone the fragments in plasmids or other vectors.
Sequence each fragment.
Order the sequences into one overall sequence.

There are over 250 different types of cells which all contain identical genome, although each cell type is specialized to perform different tasks. Less than 20% of genes are expressed in a typical cell type and differentiation of cells depends solely upon the set of genes expressed.

There are over 250 different types of cells which all contain identical genome, although each cell type is specialized to perform different tasks. Less than 20% of genes are expressed in a typical cell type and differentiation of cells depends solely upon the set of genes expressed.

Biotechnology provides solutions to world problems by:

Increasing crop yields
Enhances crop resistance to pests
Increases resistance to abiotic stresses such as salinity and drought