B is the nucleoid
D is Ribosomes
Hope this helps :)
The sole reason why red blood cells are unable to replace damaged proteins is that red blood cells lack DNA and cell organelles such as the nucleus, ribosomes, and mitochondria which are crucial for protein synthesis, assembly, and repair. In other words, they lack both the information and the machinery for making or repair of proteins.
Due to lack of DNA and cell organelles, red blood cells cannot be able to satisfy the central dogma which summarizes synthesis of proteins as DNA → RNA → proteins.
DNA has the genetic information on how proteins should be made, RNA is responsible for transferring the information from DNA in the cell nucleus to the ribosomes in the cytoplasm, then translating or decoding this information, which results in the making of protein.
Answer: Gastroenterology
Explanation: Gastroenterology is a branch of medicine concerned with digestive diseases. The practice of gastroenterology concentrates on the diagnosis and treatment of diseases involving the esophagus, stomach, small intestine, and large intestine (colon), liver, and pancreas. Examples of conditions treated: Abdominal pain.
Continuous cell lines differ from primary cell lines in that <span>continuous cell lines are derived from primary cell lines.</span>
