Agene known as tum1 is found to be commonly deleted in colon cancer tumors. researchers use crisper to make the tum1 gene promoter more active in mice and discover that this gene edit can reduce cancer rates. the original association between tum1 and colon cancer would be best characterized as

The correct answer to fill in the blank here, would be: The original association between tum1 and colon cancer would be best characterized as a: reverse approach.

Explanation:

In the treatment of cancer, especially of metastatic cancer, the usual focus was first on the primary source of the lesions and then the metastatic organs, in order to reduce tumor size and be able to resect as much as possible, for better prognosis. However, in studies carried out recently, a new approah was proposed, which is known as the reverse approach. Basically, its idea is to treat the matter in reverse, going not from the origin, but rather from the result, and working back to the origin itself. In this case, researchers knew that the common denominator for cancerous tumors in the colon was the deletion of the tum1  gene. So, what they did in the study was activate that gene in mice to see how the suppression of that one gene could work in suppressing and reducing cancer rates. This is the very idea of reverse approach.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .