A) they have common origin
B) they have different origin
C) they have similar blood groups
D) they have same number of chromosomes
Correct Answer: A
Solution :
Among the primates, chimpanzee is the closest relative of present day humans. It is supposed that man and chimpanzee have common origin because banding pattern in the autosome number 3 and 6 of both are similar, RNA content of diploid set is similar and DNA of man shows more than 90% similarities with chimpanzee.
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