Restriction mapping is used to estimate nucleotide sequence polymorphism when the regions to be studied are too long or too numerous to be sequenced. Restriction mapping is less costly than DNA sequencing, but it does not allow direct measurement of underlying nucleotide polymorphism. It is therefore useful to be able to estimate underlying nucleotide polymorphism from observations of polymorph...

Reduced DNA repair capacity can render a high risk of developing many types of cancer; including breast cancer. Polymorphisms in DNA repair genes may contribute the genetic instability and carcinogenesis. In the present work the distribution of genotypes and frequency of alleles of the Ser326Cys polymorphism of hOGG1 gene in breast cancer women were analysed. Blood samples were obtained from 10...

as a case study, the genotypic polymorphism of the iranian material of diploid triticum was screened based on internal transcribed spacer 2 (its2) of the ribosomal dna (rdna) using single strand conformation polymorphism (sscp) analysis. this is a simple and cost effective technique for genotyping and investigating the allelic polymorphism among plant populations. performing sscp analysis among...

biochemical polymorphism study is a method of determination of genetic variation. this variability could be a basis for selection and subsequent genetic improvement in farm animals. the polymorphism in the intron 1 of chicken growth hormone (cgh) gene was investigated in the iranian native fowls by using polymerase chain reaction (pcr)-restriction fragment length polymorphism (rflp) method. the...

Introduction: Considering the effectiveness of polymorphisms in the occurrence of respiratory diseases, it seems that these genetic variations in viral and microbial receptors can be effective in the occurrence and progression of the disease. The present study aimed to  assess the relationship between the C-159T polymorphism in the CD14 gene promoter and the severity of the disease in  Covid-19...

Background: Endometriosis is one of the most common benign gynecological diseases which is characterized by endometriallike tissue growing outside the uterine cavity. Although the pathology of endometriosis remains unknown, the genetic predisposition plays an apparent role. Several genes have been contributed to endometriosis, but it seems KRAS has a crucial role, because its activation results...

BackgroundAttention deficit hyperactivity disorder (ADHD), is a multifactorial disorder and converging evidence has implicated abnormalities of dopamine neurotransmission. The aim of this study was to examine the association of -141 polymorphisms in DRD2 gene with ADHA among Iranian-Azeri population.Materials and Methods A case–control association study included 153 patients with attention defi...

in this study, substitution at codon ser315 of katg gene, a reliable marker for isoniazid (inh) resistance was analyzed and compared by three molecular methods such as dna sequencing, polymerase chain reaction restriction fragment length polymorphism (pcr-rflp) and pcr-single strand conformation polymorphism (pcr-sscp) in 105 phenotypically resistant isolates obtained from various parts of indi...