Genetic entities

Initially it was suggested that the carbohydrate-induced variety of hyperlipemia were an acquired metabolic disturbance (Ahrens et al., Kuo and Bassett). Presently most authors accept this form to be another genetic entity. 

Genetic heterogeneity of a condition (different genetic entities which usually can phenotypically not be distinguished) can lead to misinterpretation. An impressive example is Alport syndrome with at least three different gene loci. It is estimated that about 80-85% of families follow an X-linked mode of inheritance, however, autosomal modes of inheritance exist. Indirect genotype analysis can lead to... 

The involvement of several genes reflects the heterogeneous pathogenesis of the nephrotic syndromes. Pathoanatomical lesions do not indicate a specific genetic entity. Apart from the congenital nephrotic syndrome of the Finnish type, which rarely occurs in non-Finnish populations, genetic testing is not applicable on a routine basis. 

The Cytological maps feature within the Maps section of FlyBase allows users to view different classes of genetic entities based on their determined or predicted cytogenetic map location. These classes of data include genes and various types of aberrations. After selecting cytological division and data class, the user can click on the symbol of an entity to open a hyperlinked text file describing that entity. 

Vimses are one of the smallest biological entities (except viroids and prions) that carry all the iaformation necessary for thek own reproduction. They are unique, differing from procaryotes and eucaryotes ia that they carry only one type of nucleic acid as genetic material, which can be transported by the vims from one cell to another. Vimses are composed of a shell of proteki enclosing a core of nucleic acid, either ribonucleic acid (RNA) or deoxyribonucleic acid (DNA), that codes for vkal reproduction. The outer shell serves as a protective coat to keep the nucleic acid kitact and safe from enzymatic destmction. In addition to thek proteki coat, some vimses contain an outer covering known as an outer envelope. This outer envelope consists of a Hpid or polysaccharide material. 

---