Polymorphisms in reproductive strategies are among the most extreme and complex in nature. A prominent example is male body size and the correlated reproductive strategies in some species of platyfish and swordtails of the genus Xiphophorus. This polymorphism is controlled by a single Mendelian locus (P) that determines the onset of sexual maturity of males. Because males cease growth after rea...

A comprehensive analysis of two Alu Y lineage subfamilies was undertaken to assess Alu-associated genomic diversity and identify new Alu insertion polymorphisms for the study of human population genetics. Recently integrated Alu elements (283) from the Yg6 and Yi6 subfamilies were analyzed by polymerase chain reaction (PCR), and 25 of the loci analyzed were polymorphic for insertion presence/ab...

background: half of the cases of vision loss in people under 60 years of age have been attributed to age-related macular degeneration (amd). this is a multifactorial disease with late onset. it has been demonstrated that many different genetic loci are implicated in the risk of developing amd in different populations. in the current study, we investigated the association of high-temperature ‎re...

background: breast cancer is the most common malignancy among women. it is estimated that 1 in 10 women worldwide is affected by breast cancer during their lifetime. in 5 to 10% of breast cancer patients, the disease results from a hereditary predisposition, which can be attributable to mutations in either of two tumor suppressor genes, brca1 and brca2 to a large extent. brca2 6174delt mutation...

background: during recent years, infection of acinetobacter baumanii showed a rapid growth in hospitals and community. toll-like receptors (tlrs) are the most important pattern recognition receptors, which play a critical role during recognizing invading pathogens by the natural immune system. our objective was to determine the associations of tlrs polymorphisms with the susceptibility to a. ba...

Abstract There was a difference in the genetic profiles of CYP21 genotype, it showed three polymorphisms: 250/240, 260/251 and 270/261 bp, their distribution ratios were 51.72, 29.31, 18.96%, respectively. The percentages highly significant differences (P≤0.01), total studied alleles 116. study that there no production milk its components between polymorphisms, as well rate flow. (P≤0.05) diffe...

Y-STR genotyping is an excellent tool for the identification of male DNA masked by female DNA, particularly in sexual assault cases where, more often the male and female components cannot be separated completely. Resultant, the female component could exist prominently even in the male component after separation. When the "male DNA sample mixed with female DNA” undergoes PCR by using autosomal S...

Morph frequencies of three related polymorphisms were determined in ten natural populations of Drosophila pseudoobscura. They are the well-known inversion polymorphism of the third chromosome and the polymorphism for a-amylase produced by the structural gene A m y (which resides on the third chromosome). The third polymorphism was for tissue-specific expression of A m y in adult midguts; a tota...

BACKGROUND As the high throughput sequencing efforts generate more biological information, scientists from different disciplines are interpreting the polymorphisms that make us unique. In addition, there is an increasing trend in general public to research their own genealogy, find distant relatives and to know more about their biological background. Commercial vendors are providing analyses of...