In the nucleus.
1 transcription of the information encoded in DNA into a molecule of RNA (described here) and. 2  translation of the information encoded in the nucleotides of mRNA into a defined sequence of amino acids in a protein (discussed in. 3  Gene Translation: RNA → Protein).  During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene. When translation begins, the small subunit of the ribosome and an initiator tRNA molecule assemble on the mRNA transcript. The small subunit of the ribosome has three binding sites: an amino acid site (A), a polypeptide site (P), and an exit site (E). translation / RNA translation. Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins. Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (mRNA) by the enzyme RNA polymerase.  Answer. It must occur in the nucleus where the DNA in the cell is located. However, once mRNA is produced, it leaves the nucleus and protein synthesis – translation – occurs in the cytoplasm. Translation. The mRNA formed in transcription is transported out of the nucleus, into the cytoplasm, to the ribosome (the cell's protein synthesis factory). Here, it directs protein synthesis. Messenger RNA is not directly involved in protein synthesis − transfer RNA (tRNA) is required for this. Transcription is the process by which DNA is copied (transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger RNA is formed, with the involvement of RNA polymerase enzymes. In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. When translation begins, the small subunit of the ribosome and an initiator tRNA molecule assemble on the mRNA transcript. The small subunit of the ribosome has three binding sites: an amino acid site (A), a polypeptide site (P), and an exit site (E). The ribosome has a small and a large subunit and is a complex molecule composed of several ribosomal RNA molecules and a number of proteins. Translation of an mRNA molecule by the ribosome occurs in three stages: initiation, elongation, and termination. During initiation, the small ribosomal subunit binds to the start of the mRNA sequence. During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks In molecular biology and genetics, translation is the process in which cellular ribosomes create proteins. In translation, messenger RNA (mRNA) —produced by transcription from DNA —is decoded by a ribosome to produce a specific amino acid chain, or polypeptide. Many types of transcribed RNA, such as transfer RNA, ribosomal RNA, and small nuclear RNA, do not undergo translation into proteins. A number of antibiotics act by inhibiting translation. These include anisomycin, cycloheximide, chloramphenicol, tetracycline, streptomycin, erythromycin, and puromycin.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Transcription.html http://www.nature.com/scitable/topicpage/Translation-DNA-to-mRNA-to-Protein-393 http://www.nature.com/scitable/definition/translation-RNA-translation-173 https://en.wikipedia.org/wiki/Transcription_(genetics) http://www.open.edu/openlearn/science-maths-technology/science/biology/what-do-genes-do/content-section-5 http://www.atdbio.com/content/14/Transcription-Translation-and-Replication http://www.nature.com/scitable/topicpage/Translation-DNA-to-mRNA-to-Protein-393 http://www.nature.com/scitable/definition/translation-RNA-translation-173 https://en.wikipedia.org/wiki/Translation_(biology)
where does translation of rna into proteins occur