The best replacement for dna is rna.

The best alternatives to dna are rated as following:
★★★★★  rna
★★  book of mormon
★★  beats
★  fingerprints
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Your alternative for dna is not listed? Suggest!
Speaking about dna, one probably shouldn't forget about histones.

Other search terms related to dna and their ratings are:
★★★★★ histones
★★★ pap
★★ animal dna
★ hydrogen bonds
★ major and minor grooves
★ in nucleus
★ thymine
★ associated proteins
nucleus
rna
pcr
human dna
proteins
chimpanzees
You have in mind a companion for dna and it is not yet here? Propose!



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