Respuesta :

Answer:

are encoded by the genes in the nucleus

Are composed of adenine, guanine, cytosine, and uracil

Explanation:

Answer:

Each mRNA, tRNA, and rRNA are encoded by the genes in the nucleus. The mRNA, tRNA, and rRNA are composed of adenine, guanine, cytosine, and uracil. Both mRNA and rRNA are single-stranded molecules. Both rRNA and tRNA do not work with DNA.

Explanation: