Question

compare all the organisms. what trend do you see? the proportions of dna bases vary greatly among organisms. the proportions of dna bases are similar in closely related organisms, but different in organisms that are not closely related. the proportions of dna bases are similar among all organisms. relative proportions (%) of bases in dna organism a t g c human 30.9 29.4 19.9 19.8 chicken 28.8 29.2 20.5 21.5 grasshopper 29.3 29.3 20.5 20.7 sea urchin 32.8 32.1 17.7 17.3 wheat 27.3 27.1 22.7 22.8 yeast 31.3 32.9 18.7 17.1 e. coli 24.7 23.6 26.0 25.7

Explanation:

Looking at the table, for every organism, the percentage of adenine (A) is nearly equal to thymine (T), and the percentage of guanine (G) is nearly equal to cytosine (C). While there are small numerical differences, the overall base proportion pattern is consistent across all listed organisms, from humans to bacteria (E. coli).

Answer:

The proportions of DNA bases are similar among all organisms.