1. The sequence of bases located prior to the gene (along the DNA strand), to which a complex of RNA polymerase and sigma factors attaches itself to initiate transcription is called :   exon   promotor   telomere   terminator   Hint Half-n-half Clue   2. 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   3. Genes that are expressed at all times and under all conditions of growth are called :   constitutive genes   antibody genes   chimeric genes   regulatable genes   Half-n-half Clue   4. 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   5. 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   6. A guanine triphosphate nucleotide that binds to the 5' end of the mRNA thus increasing the stability of the synthesized RNA and enhancing translation efficiency is called a :   leader   Cap   trailer   poly-A-tail   Half-n-half Clue   7. 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