Which of the following risk is the least likely to affect an individual who has been smoking only a few months a long cancer be shortness of breath see yellowing teeth d reduce sense of smell

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.