Introduction ROTHMANN (1906), Schroder (1908), and Schob (1931), published the early work on spontaneous lesions of the peripheral optic pathways in isolated cases of apes who died of a diffuse degenerative process in the white matter of the centrum ovale and (or) the spinal cord. These authors gave contradictory descriptions of the lesions in the optic pathways. Scherer (1932), who first recog...

Purpose: The aim of this study is to determine and define differential magnetic resonance imaging (MRI) findings pituitary adenomas craniopharyngiomas. Materials methods: This retrospective analysis was performed on MR 45 41 craniopharyngiomas with solid cystic mixed appearance. MRI including shape ovoid, snowman, lobulation, chiasma compression, cavernous sinus invasion, 3rd ventricle calcific...

CONXENTS LIFE CYCLES ......................................................... 151 RECOMBINATION ....................................................... 152 Tetrad and random spore analysis; procedures ............................ 152 Chromosome maps ................................................... 153 Interference, chiasma, and chromatid .................................... 153 Gene convers...

BACKGROUND In humans, little is known about the mechanisms of non-disjunction working in male meiosis, although considerable attention has been given to these mechanisms in female meiosis. The present study explores the origin of meiotic non-disjunction during human spermatogenesis and the chromosomes most commonly involved in this process. METHODS We used Multiplex fluorescence in situ hybri...

Background: We describe karyotypic variations and the in vitro methods for plant propagation and conservation as well as detailed chromosomal analysis of (Aloe vera L.) and Aloe littoralis from Iran during flowering stage. Objectives: This karyotypic was discovered because of a difference in the position of the chromosome and due to genomic differentiation in domesticated pop...