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KengaRu [80]
3 years ago
9

Adenine, guanine, cytosine, and thymine are the four nitrogenous bases present in the DNA of all organisms. Which scientist disc

overed these bases?
Rosalind Franklin
Erwin Chargaff
Linus Pauling
Biology
1 answer:
Hitman42 [59]3 years ago
7 0
Erwin Chargaff discovered these bases.
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<em><u>Crude oil, coal, wind and natural gas are all primary energy sources. Electricity is not a primary energy source, it's an energy currency (see electricity as an energy currency for an in depth discussion). Likewise, secondary fuels are also energy currencies and aren't primary energy sources, they must be made.</u></em>

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