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?
Best Answer: exons-DNA sequence that codes for either an RNA or a protein. introns-bits of 'noncoding' sequence that are within exons. Introns are transcribed, but then spiced out before the final mRNA is released.coding: any DNA sequence that is transcribed into a protein or functional RNA. non-coding: stretches of DNA that appear to have no function. this does not mean it's junk sequence, it just means that we don't know of the function.ntrons are transcribed, but then spiced out before the final mRNA is released. coding: any DNA sequence that is transcribed into a protein or functional RNA. non-coding: stretches of DNA that appear to have no function. this does not mean it's junk sequence, it just means that we don't know of the function.