what was friedrich mieschers contribution to the discovery of the genetic code? he created the first…
what was friedrich mieschers contribution to the discovery of the genetic code? he created the first photograph of the structure of dna. he discovered how the dna bases pair together. he created the first accurate model of dnas structure. he extracted and observed dna from white blood cells.
Answer
Brief Explanations:
Friedrich Miescher extracted and observed DNA from white - blood cells in the late 19th century. He was the first to isolate nucleic acid. The other options describe contributions by other scientists. Rosalind Franklin created the first photograph of the DNA structure (X - ray diffraction image), Watson and Crick created the first accurate model of DNA's structure, and Chargaff discovered how the DNA bases pair together.
Answer:
He extracted and observed DNA from white blood cells.