Appropriate regulation of different genes is accomplished by different combinations of a limited repertoire of transcription factors at each gene, a mechanism referred to as _____________________.

Here are the main points for an informative speech about classical ballet. I. Classical ballet embraces styles originated in different cultures. II. Classical ballet nurtures the best dancers in the world. III. Classical ballet offers the audience the greatest works in the ballet repertoire. These main points are arranged in __________ order.