A common feature shared by animals, plants, bacteria and viroids is the presence of
A
RNA
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B
DNA
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C
proteins
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D
cell wall
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Solution
The correct option is A RNA All of the given organisms have ribonucleic acid (RNA). Animals, plants and bacteria have three different types of RNA - mRNA, tRNA and rRNA to help in protein synthesis. Viroids are free RNA of low molecular weight that are capable of infecting plants.