1. Sections of DNA within a gene that do not encode part of the protein that the gene produces are called :   Exons   Transposons   intein   Introns   Hint Half-n-half Clue   2. Proteins that bind between the promotor region and the section of the gene which is transcribed thus blocking transcription (preventing gene expression) are called :   Operator   Repressors   Activators   inducer   Half-n-half Clue   3. The lac repressor protein binds to the operator region...   in the absence of lactose   in the presence of lactose   in the presence of cAMP   in the absence of glucose   Half-n-half Clue   4. The process by which messenger RNA is synthesized by complementary base pairing of ribonucleotides with deoxyribonucleotides to match a section of DNA (a gene) is called :   Translation   Replication   Transcription   I have no idea ! !   Half-n-half Clue   5. A series of 20 to 200 Adenine ribonucleotides that is added to the 3' end of the transcribed RNA molecule (pre-mRNA) that helps in the transportation of mRNA out of the nucleus is called :   trailer   the poly-A-tail   a Shine-Dalgarno sequence   cap   Half-n-half Clue   6. A collection of genes including one which acts as a switch that governs the expression of the structural genes in the collection is called :   An Operon   lac operon   A regulon   Does everything have to have a name ? ? ! !   Half-n-half Clue   7. An RNA molecule that can catalyze either its own cleavage (self-splicing) or the cleavage of other RNA molecules is :   A ribozyme   An inducer   A chaperone enzyme.   A spliceosome   Half-n-half Clue