Which of the following is true of rna compared to dna

a-it lacks phosphate group s
b-it is a single-stranded molecule
c- its nucleotides do not have sugars
d-it contains four different nucleotides

[content deleted] - user123802726recklesschicken

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.