Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA samples are shown.
Organism
Adenine
Guanine
Cytosine
Thymine
Sea urchin
32.8%
17.7%
17.3%
32.1%
Salmon
29.7%
20.8%
20.4%
29.1%.
Wheat
28.1%
21.8%
22.7%
27.4%
Which conclusion is supported by the data in the table?
A Each organism contains more cytosine than any other base.
® The three organisms have the same sequence of nucleotides.
© All three organisms contain the same types of nitrogen bases.
® The presence of each base is dependent on the size of the organism.