Pork and beef insulins are similar to human insulin, differing only in one or a few amino acids. However, even a slight difference is enough to elicit an allergic response in some people. To overcome this problem, researchers looked for ways to make insulin that would more closely resemble human insulin.
Answer:
bone marrow
Explanation:
These are the blood cell-forming adult stem cells found in bone marrow. Every type of blood cell in the bone marrow starts as a stem cell. Stem cells are immature cells that are able to make other blood cells that mature and function as needed. These cells are used in procedures such as bone marrow transplants.
As activators that increase transcription initiation or decrease action of transcription initiation of related gene, transcription factors that bind to enhancers have an impact on genes thousands of base pairs distant.
Because the DNA between the enhancer and the promoter loops out, transcription factors bound to the enhancer can communicate with the basic transcription machinery directly. A few proteins that act as transcription regulators bind to enhancers, that are regulatory components located outside the gene they are meant to activate. DNA sequences known as insulators prevent enhancers from working. Insulators may work by creating chromatin loops that connect interconnected areas of genes and regulatory components.
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Answer:
carbon dioxide that's the answer