1. Sections of DNA within a gene that do not encode part of the protein that the gene produces are called :   intein   Exons   Introns   Transposons   Hint Half-n-half Clue   2. 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   3. The bacterial promotor sequence usually found at the -10 position (ten base pairs upstream of the transcription start site) is :   TTGACA   TATAAT   TATTAT   TAGACA   Half-n-half Clue   4. A RNA transcript (whose base sequence is complementary to that of the mRNA of a gene) that can inhibit the expression of a gene by forming a duplex with the mRNA strand is called :   antisense RNA   tRNA   dsRNA   rRNA   Half-n-half Clue   5. Due to the presence of Introns and Exons, in Eukaryotes the splicing process of pre-mRNA can lead to different ripe mRNA molecules and therefore to different proteins. This phenomenon is called :   intronic splicing   exonic splicing   alternative splicing   gene splicing   Half-n-half Clue   6. A gene that encodes RNA that functions without being translated into a protein is called :   An RNA gene   AN Oncogene   A quiet gene   A pseudogene   Half-n-half Clue   7. The series of three consecutive mRNA bases coding for one specific amino acid in a protein is called a :   codon   transposon   exon   intron   Half-n-half Clue