Which structural component is found in dna but not in rna?

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium

Can a trait be both polygenic and have multiple alleles? explain why or why not.

Cells control gene expression at which steps