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Sickle cell trait causes a change in the haemoglobin molecule in the blood. Normally, red blood cells have a very flexible, biconcave shape that allows them to move through narrow capillaries ; however, when the modified haemoglobin S molecules are exposed to low amounts of oxygen, or crowd together due to dehydration, they can stick together ...
Genetics is the study of genes, genetic variation, and heredity in organisms. [1][2][3] It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically.
Stroke (also known as a cerebrovascular accident (CVA) or brain attack) is a medical condition in which poor blood flow to the brain causes cell death. [ 5 ] There are two main types of stroke: ischemic, due to lack of blood flow, and. hemorrhagic, due to bleeding.
This list concerns blood type distribution between countries and regions.Blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs).
Records for two of the cell phones found in the Nissan Xterra showed that on multiple days and times from Aug. 18 to Sept. 15, Routh’s mobile phone accessed cell towers located near Trump ...
Unitary. 76 provinces (changwat) 878 districts (amphoe) 7,255 subdistricts (tambons) 74,944 villages (muban) Community associations (chum-chon) Municipalities (thesaban) of 3 types take some responsibilities of districts and subdistricts [ f ] Pattaya special administrative area. Bangkok special administrative area.
This is a list of video games that have been censored or banned by governments of various states in the world. Governments that have banned video games have been criticized for a correlated increase in digital piracy, limiting business opportunities and violating rights. [1] [2] [3]
This is a list of current heads of state and heads of government.In some cases, mainly in presidential systems, one leader is head of state and head of government.In other cases, mainly in semi-presidential and parliamentary systems, the head of state and the head of government are different people.