In this task, you will be given a sentence. You need to reconize the name of the disorder or disease. Disease is a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury. Although there might be several correct answers, you need to write one of them.

 Of 57 informative meioses , two crossovers were noted between the C2 deficiency gene and the HLA - B gene , with a recombinant fraction of 0 .
C2 deficiency

 Molecular defects leading to human complement component C6 deficiency in an African - American family .
C6 deficiency

 When the W474C - containing alpha - subunit was transiently co - expressed with the beta - subunit to produce Hex A ( alphabeta ) in COS - 7 cells , the mature alpha - subunit was present , but its level was much lower than that from normal alpha - subunit transfections , although higher than in those cells transfected with an alpha - subunit associated with infantile TSD .

TSD

