scientists

Question 1

Took x-ray diffraction pictures used in constructing the structure of dna

Answer 1

franklin and wilkins

Question 2

determined that dna contains nitrogenous bases

Answer 2

Kossel

Question 3

identified dna as the genetic material in bacteriophages

Answer 3

Hershey and chase

Question 4

discovered regularity in the ratios of different bases in dna

Answer 4

chargoff

Question 5

determined that dna is responsible for transformation in baceria

Answer 5

avery, macleod, mmccarty

Question 6

worked out the helical structure of dna by building models

Answer 6

Watson and crick

Question 7

discovere that dna consists of repeating nucleotide

Answer 7

levene

Question 8

determined dna is acidic and high in phos

Answer 8

miescher

Question 9

conducted experiments showing that rna canserve as the genetic material in some viruses

Answer 9

fraenkel-conrat

Question 10

demonstrated that head killed material from bacteria can genetically transform live bacteria

Answer 10

Griffith