Bmdsx produces alternatively spliced mRNA isoforms that encode sex specific transcription factors as observed in dsx . While the female-specific splicing of dsx is activated by splicing activators, Tra and Tra2, the female splicing of Bmdsx represents the default mode. Instead, a splicing inhibitor...
Meiosis is a specialized process that produces haploid gametes from diploid cells by a single round of DNA replication followed by two successive cell divisions. It contains many special events, such as programmed DNA double-strand break (DSB) formation, homologous recombination, crossover formation ...
Histological Studies on the Gonads of The Fowl: II.--The Histogenesis of the So-Called "Luteal" Cells in the Ovary (1) The so-called 'luteal' cells of the ovary are derived from the medullary cords of the embryo, as previously shown by Firket and Nonidez. The process, which appears...
These results indicate that SCD in both mating type cells is induced by high molecular weight sex pheromones and that the roles of gametangial cells in the process of conjugation differ by sex. 展开 关键词: Closterium conjugation gametangial cell pheromone sexual cell division sexual reproduction ...
Necrotic cell debris resulting from this process produces a systemic inflammatory reaction, which may lead to multiorgan failure in due course. Acute pancreatitis varies considerably in severity and can be categorized into two forms of the disease. The majority of cases (85%) present with a mild...
These mutants have germ lines with high amounts of Sxl RNA spliced in the male mode and a severe reduction of protein levels in the germ cells. Another class of female-sterile mutations produces a phenotype similar to that seen in fs(1)1621 and otu1 but appears to express normal levels ...
The success of sexual reproduction in mammals depends on segregation of the male sex chromosomes, X and Y, during the cell division process that produces gametes (meiosis). This requires that in male germ cells, the X and Y chromosomes r... RS Hawley - 《Science》 被引量: 0发表: 2011年...
The success of sexual reproduction in mammals depends on segregation of the male sex chromosomes, X and Y, during the cell division process that produces gametes (meiosis). This requires that in male germ cells, the X and Y chromosomes reliably pair and exchange genetic material (1). This pr...
HPVs probably infect individual groups of cells of the undifferentiated reserve cell (basal cell) layer where they can remain latent for longer periods of time. As in squamous cervical intraepithelial neoplasia (CIN), but apparently much less often than in CIN, first individual cells and than ...
This paper reports the enlarged Synthesis and application of the sex pheromone of Asian corn Borer. The influence factors on the Synthesis are Studied and the optimal basic concentration is determinated. Meanwhile, the reliable data for batch production are proposed. The biological assay in the field...