DNA only replicates once in either mitosis or meiosis. I guess you mean how many times a pair of sister chromatids are separated. Still, once for either of them. The only difference between mitosis and meiosis is that mitosis forms 2 identical daughter cells with diploid number of chromosomes in a single 'split'.
Is pathogen causes disease or illness to its host
Answer: The hepatic portal vein is one of the most important vein that receives blood from the body and transports it into the liver for filtration and processing. This vein is part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder, and spleen.
‘Hepatic’ means of or relating to the liver, therefore the hepatic portal vein is a blood vessel that sends nutrient-rich blood from the gastrointestinal tract and spleen to the liver, but also delivers toxins to the liver that will be chemically modified in the proces of detoxication
