How was DNA discovered and how is it used today?be very discriptive please asap.

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orchid101 | College Teacher | (Level 1) Associate Educator

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The widely accepted molecular model of DNA is the double helix structure proposed by Watson and Crick (1953). The DNA molecule consists of two helically twisted strands connected together by steps. In recent years, techniques for manipulaating eukaryotic as well as prokaryotic DNA have witnessed a remarkable developement. This has allowed breakage of DNA molecule at desired places to isolate a specific DNA segment and then insert it in another DNA molecule at a desired position. The technique of DNA fingerprinting has been developed by Alec Jeffreys and his colleagues.This will allow identification of rapists in rape cases and of mother or father in case of doubtful parcentage.
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femalegene | Student, Grade 11 | (Level 1) eNoter

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DNA was first discovered thanks to fellows named Francis Harry Compton Crick who was a English molecular biologist and biophysicist, neuroscientist. And James Dewey Watson who was American molecular biologist, geneticist, and zoologist. Both Crick and Waston were the co discovers of struction of DNA in year 1953. Grouping a team together as both bringing enlightening commons. Cricks had been highly interested in two fundemental unsolved biologcal problems, as being how molecules create transition from nonliving to living and second, how the brain makes conscious mind. While Watson was highly drawn into molecular biology by the work of Salvador Luria. 

DNA provides help for many situations such as genetic finger prints, alongside test helping pinpoint treatments for cancer patients, evidence, much help directly for scientist experiments which being majoraly important in our past times for which discoveries of new medicines and similar encouterments like mutation in chromosomes. Also, solve crime statistic including investigation, catching criminals and identifying specific disease.

Without DNA, our modern times would be hopelessly losted with little insurance of help and security.

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