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1 in 7,500 males (haemophilia A), 1 in 40,000 males (haemophilia B) [2] [5] Haemophilia ( British English ), or hemophilia ( American English ) [ 6 ] (from Ancient Greek αἷμα ( haîma ) 'blood' and φιλία ( philía ) 'love of'), [ 7 ] is a mostly inherited genetic disorder that impairs the body's ability to make blood clots , a process ...
Hybrid speciation may have produced Heliconius butterflies, but that is disputed. [20] Family Papilionidae. Genus Battus. The Coeruloaurean swallowtail is a hybrid produced by a Pipevine swallowtail (Battus philenor) mating with a Goldrim swallowtail (Battus polydamas). [21] As the ranges of these two species overlap, the hybrid can be ...
A word search. A word search, word find, word seek, word sleuth or mystery word puzzle is a word game that consists of the letters of words placed in a grid, which usually has a rectangular or square shape. The objective of this puzzle is to find and mark all the words hidden inside the box. The words may be placed horizontally, vertically, or ...
Two complex chimpanzee blood group systems, V-A-B-D and R-C-E-F systems, proved to be counterparts of the human MNS and Rh blood group systems, respectively. Two blood group systems have been defined in Old World monkeys: the Drh system of macaques and the Bp system of baboons, both linked by at least one species shared by either of the blood group systems.
Living organisms are known by scientific names.These binomial names can vary greatly in length, and some can be very short; genus or species names composed of only one letter are not allowed by any of the nomenclature codes, but any combination of two letters and above can be valid if it has not been previously used.
X chromosome. The factor IX gene is located on the X chromosome (Xq27.1-q27.2). It is an X-linked recessive trait, which explains why males are affected in greater numbers. [9] [10] A change in the F9 gene, which makes blood clotting factor IX (9), causes haemophilia B. [11]
The National Bleeding Disorders Foundation was founded in 1948, as the first national hemophilia advocacy organization in the United States. [2] One of its early initiatives was to secure funding for Comprehensive Hemophilia Diagnostic and Treatment Centers (HTC).
Haemophilus influenzae (formerly called Pfeiffer's bacillus or Bacillus influenzae) is a Gram-negative, non-motile, coccobacillary, facultatively anaerobic, capnophilic pathogenic bacterium of the family Pasteurellaceae.