If you use cocaine on a regular basis, the byproducts of the drug may be detected in your urine for up to two weeks after your last use. Hair analysis can reveal traces of cocaine use for three or more months after use.
1 rRNA is located in the cytoplasm of a cell, where ribosomes are found. 2  rRNA directs the translation of mRNA into proteins. 3  tRNA or Transfer RNA. 4  Like rRNA, tRNA is located in the cellular cytoplasm and is involved in protein synthesis.nswer: There are actually several types of ribonucleic acid or RNA, but most RNA falls into one of three categories: 1  mRNA or Messenger RNA. 2  mRNA transcribes the genetic code from DNA into a form that can be read and used to make proteins.
DNA and RNA are strands of nucleotides. DNA is a double-stranded  nucleotide, and RNA is a single-stranded nucleotide.    Both DNA and RNA are known as nucleic acids.â¦ DNA in most cases has  control on the genetic information of the cell where as RNA is  produced by DNA strands to perform specific functions.here are many types of RNA including mRNA, tRNA, and rRNA. mRNA and tRNA are involved in protein synthesis and the process of â¦ translation. mRNA and tRNA bind to the ribosome and form polypeptides or proteins that are released into the cell.