background: acute lymphoblastic leukemia (all) is the sixth most common malignancy in iran. cytogenetic analysis of leukemic blasts plays an important role in classification and prognosis in all patients. the purpose of this study was to define the frequency of chromosomal abnormalities of all patients in adults and children in fars province, iran. methods: in this cross-sectional study, we eva...

background: chromosome abnormality (ca) including sex chromosomes abnormality (scas) is one of the most important causes of disordered sexual development and infertility. scas formed by numerical or structural alteration in x and y chromosomes, are the most frequently ca encountered at both prenatal diagnosis and at birth. objective: this study describes cytogenetic findings of cases suspected ...

The study utilized molecular-genetic, cytogenetic, and statistical analyzes methods. A cytogenetic molecular genetic analysis of the inhabitants villages Amangeldy, Belbulak, in whose territory warehouses unused pesticides are located, was carried out. Residents Basshi village, on which there no products disposal pesticides, were taken as control. Cytogenetic showed a high level chromosomal abe...

Cytogenetics has proved to be a valuable aid in the study of higher organisms but has received only limited attention in microbiology. Witkin (1951), Ryan et al. (1954) and Ryan and Wainwright (1954) have successfully applied cytogenetic approaches to the study of bacteria. Haploid and diploid cultures of Escherichia coli strain K-12 were studied cytologically by Lederberg et al. (1951) in an e...

Sir It has been estimated that 25-40% or more pregnancies end in spontaneous abortions and that at least 80% happened in the first trimester!. There are many causes of spontaneous abortion, but it is now known that about 60% of abortuses expelled spontaneously in the first trimester are chromosomally abnormaF. The types of chromosomal abnormality usually found in abortuses are autosomal trisomy...