The base composition of a biological nucleic acid, purine base accounted for 52%, pyrimidine base accounted for 48%, this organism must not () A. Bacteriophage B. Escherichia coli C. Penicillium D. tobacco mosaic virus

The base composition of a biological nucleic acid, purine base accounted for 52%, pyrimidine base accounted for 48%, this organism must not () A. Bacteriophage B. Escherichia coli C. Penicillium D. tobacco mosaic virus

It is known from the title that the purine base and pyrimidine base in the nucleic acid of the organism account for 52% and 48%, respectively, that is, purine ≠ pyrimidine. Therefore, the organism can not only contain DNA, so it can not be a phage

The composition of a biological base is: purine base is 58%, pyrimidine base is 42%
Organisms may be:
a.
b. Bacteriophage
c. Mice
D. Tobacco mosaic virus
Which one to choose and how to analyze it?

D
This is what happens when RNA is genetic material

The base composition of an organism is: purine base 60%, pyrimidine base 40%
A. Cotton B. sheep C. phage D. tobacco mosaic virus

c