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Mention any two ways in which single nuc...

Mention any two ways in which single nucleotide polymorphism (SNPs) identified in human genome can bring revolutionary change in biological and medical science.

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Scientists have identified about 1.4 million locations where single base DNA differences (SNPs = Single nucleotide polymorphism - pronounced as .snips.) occur in humans. Identification of .SNIPS. is helpful in finding chromosomal locations for disease associated sequences and tracing human history.`
(i) Mapping of human chromosome is possible to examine a person.s DNA and to identify genetic abnormalities. This extremely useful in diagnosing disease and to provide genetic counselling to those planning to have a children. This kind of information would create possibilities for new gene therapies.
(ii) DNA sequences can lead to an understanding of their natural capabilites that can be applied towards solving challenges in healthcare, agriculture, energy production and environmental remediation.
(iii) A new era of molecular medicine characterised by looking into the most fundamental causes of disease than treating the symptoms will be an important advantage.
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