Rosalind franklin is famous for which contribution to the study of dna? a)creation of an accurate model of dna structure. b)creation of an x-ray diffraction image of dna structure. c)identification of a pattern in ratios of dna bases. d)identification of dna in bandages that contained pus.

The right answer is B

After obtaining a PhD in physics-chemistry at Cambridge in the United Kingdom obtained by studying the porosity of carbon structures, Rosalind Franklin uses X-ray diffraction techniques to determine the amorphous structures of carbon, especially those of DNA fibers.

Rosalind Franklin X-ray diffraction DNA images were instrumental in the discovery of the double-helical structure of DNA.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs