Final answer:
DNA is made up of two anti-parallel strands that form a helix. Each strand has a 3' and 5' end. Adenine pairs with thymine and cytosine pairs with guanine.
Step-by-step explanation:
DNA is made up of two strands that are twisted around each other to form a helix. Adenine pairs up with thymine and cytosine pairs with guanine. The two strands are anti-parallel in nature; that is, the 3' end of one strand faces the 5' end of the other strand. Both CT enterography and technetium scan are diagnostic tests used to evaluate and diagnose medical conditions. CT enterography is a type of CT scan that focuses on imaging the small intestine, while a technetium scan involves using a radioactive tracer to examine the function of various organs.
In the context of leading to a correct diagnosis, it depends on the specific medical condition being evaluated. For example, CT enterography can help identify causes of abdominal pain, such as Crohn's disease or small intestine tumors. A technetium scan can detect abnormalities in the liver, kidneys, or thyroid gland.
In summary, CT enterography and technetium scans provide detailed imaging and functional information, respectively, that can aid in diagnosing medical conditions affecting the small intestine, as well as organs like the liver, kidneys, and thyroid gland.