Nitrogenous bases %
human: g-19.9%, t-29.4%,
chicken: a-28.8%, %, %, c-21.5%
bacterium: a-13.4%, %, %, %

the table in figure 12–3 shows the results of measuring the
percentages of the four bases in the dna of several different
organisms. some of the values are missing from the table. based on
chargaff’s rule, the percentages of thymine bases in chicken dna
should be around
a. 28.8%
b. 19.9%.
c. 21.5%.
d. 13.4%.