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  Sir Joseph Lockyer was a astronomer and a scientist he was the first to discover the suns atmosphere.
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  The first to isolate and identify
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  Defined atomic number
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  the first to discover the big bang theory.
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  Oswald Avery proves that DNA is the genetic material of the chromosome
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  Erwin Chargaff discovers the structure and how DNA is replicated.
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  They contributed to finding out that DNA was a twisted shape.
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  Hershey and Chase both confirmed that DNA was a genetic material and they both conducted many experiments.
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  Watson and Crick were said to have ben the first to discover DNA they were the ones who were given the credit for this huge achievement.
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  Demonstrated that DNA is the transforming material cell.
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  Frederick Griffithwas the first to establish that there was a transforming princiable in bacterial genetics in a ground breaking experiment in 1928.