Radio Stars. Quasars are the brightest and most distant objects in the known universe. In the early 1960's, quasars were referred to as radio stars because they were discovered to be a strong source of radio waves. In fact, the term quasar comes from the words, quasi-stellar radio source.
The following DNA sequence occurs in the nontemplate strand of a structural gene in bacterium (the promoter sequence is located to the left but is not shown): 5 -GAATGTCAGAACTGCCATGCTTCATATGAATAGACCTCTAG-3 What is the ribonucleotide sequence of mRNA molecule that is transcribed from this piece of DNA?
Noncoding DNA: The strand of DNA that does not carry the information necessary to make proteins. DNA normally has two strands -- the coding strand and the non-coding strand. Although these strands are exact mirror images of one another, only the coding strand contains the information for making proteins. The non-coding strand does not.