The first meiotic division reduces genome ploidy.This requires pairing of homologous chromosomes into bivalents that can be bi-oriented within the spindle during prometaphase I.Thereafter, pairing is abolished during late metaphase I, and univalents are segregated apart onto opposite spindle poles during anaphase I.In contrast to canonical meiosis,
The article studies one of the most important activities of labor unions in the Kuban and Stavropol regions in days of the Great H-SERIES PARTS Patriotic War connected with implementation of political-education work among employees of the enterprises and institutions and the population of the region.Its main tasks, forms and means of implementation
OBJECTIVES: To study the role of angiogenesis and cyclooxygenase-2 expression in cartilaginous tumors and correlate these factors with prognosis.INTRODUCTION: For chondrosarcoma, the histological grade is the current standard for predicting tumor outcome.However, a low-grade chondrosarcoma can follow an aggressive course-as monitored by sequential