The inactive chromosome remains silent in somatic cells, but is reactivated during meiosis. This inactivation is tissue and cell specific, such that the maternally inherited allele may be expressed in some cells, while the paternally inherited allele may be expressed in others [18]. This process ...
which are now referred to as chromosomes. Similar to this stage in meiosis I, it is critical that all of the chromosomes separate properly, or else it can result in aneuploidy—a state where a cell has an abnormal number of chromosomes, which can result in genetic disorders and...
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In the testis, it is expressed from the pachytene stage of the prophase of meiosis until the haploid round spermatid stage where its expression peaks. The expression of H2A.B.3 is coincident with the highest level of transcription in the testis. A striking in vitro feature of H2A.B/B.3 ...
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of luteinizing hormone (LH), the master regulator of ovulation, triggers direct LH/chorionic gonadotropin receptor signaling and the production of autocrine or paracrine factors responsible for the resumption of meiosis and the transition from an immature germinal vesicle (GV) to a mature metaphase ...
Khanday et al.181and Wang et al.182found that genome editing can cause mitosis to replace meiosis in rice such that diploid clonal seeds have the original F1gene heterozygosity and maintain F1traits (Fig.6). Unlike with knocking out the infertility gene using gene editing technology, with this...
Gap junctionConnexinMale reproductive tractFertilityPathogenesisMale fertility is a highly controlled process that allows proliferation, meiosis and differentiation of... G Pointis,C Fiorini,N Defamie,... - 《Biochimica Et Biophysica Acta Biomembranes》 被引量: 193发表: 2005年 Disruption of gap junct...
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Importance of Facilitated Diffusion Not every molecule can cross the cell membranes. The molecules should be small and non-polar to traverse the membrane. For eg., glucose is a large molecule that cannot diffuse across the cell membrane. Ions like sodium, potassium, and calcium are charged and...