12. Muscle cells and nerve cells in one species of animal owe their differences in structure to A) having different genes. pain B) having different chromosomes. C) using different genetic codes. D) differential gene expression. E) having unique ribosomes. AMo noasivdtom (A AMlonoitaoitilqms (8 aoiistun lo sqg nolitenent () A 1o squi noienovens (CI niotong lo aoiinlviodqaordq (a hases via190 nl vlno boeonqo eony ereso sn vd 2dovnalus al RI 13. If you were to observe the activity of methylated DNA, you would expect it to A) be replicating. B) be unwinding in preparation for protein synthesis. C) have turned off or slowed down the process of transcription. A nd eser lloo Innaltid (O llso instoiaa D) be very active in translation. E) induce protein synthesis by not allowing repressors to bind to it. hases Srelai gaiwollol adT.er ASIm odi ot olugolom 10ze9Icon lo snibnie (A 25 may also be nsmed as: Agn. Two potential devices that eukaryotic cells use to regulate transcription are DNA lo guibail O imozodirviog lo noitemo (C ovoda sdi to lIA ( 14. AAm ad A senae- and histone A) methylation; amplification B) amplification; methylation C) acetylation; methylation D) methylation; acetylation E) amplification; acetylation to noitaluge lonoitelauiteog to olgenezs aa el gaiwollo oT.OS quenees of wild type agdi Vahoighoto lonmo (A oubni ns vd roligioat to forino (8 Mulant GA Wild type GAACCATG Ho gnioile ovitamsHA () 15. In both eukaryotes and prokaryotes, gene expression is primarily regulated at the level ofhis utation atorg lo noitelyioeqod (3 A) transcription. B) translation.on C) mRNA stability. D) MRNA splicing. E) protein stability. vd sonels esesen shimod melbidha.tS 202d boning nsowied ehoeni (A 2oeed lenotan diw aotoqmoo (a 232ad mot zquoTy onima esvom () eneleotide sogwences of wild type and its natant a b URa C mib enimyda nnoi (3 16. Which of the following statement about enhancers is correct? A) They contain unique base sequence called TATA boxoitatum oaD golsns sadSS B) They are located only in 5'-flanking regions d boiaq oowtad thseni (A e9sed fanuten diiw assqroo ( C) They are located only in introns D) They are present in a variety of locations and are functional in any orientations leod biz oeuso (a onbsnimsvdi mdl (3