نتایج جستجو برای: sperm rnas
تعداد نتایج: 70534 فیلتر نتایج به سال:
We are coming to appreciate that at fertilization human spermatozoa deliver the paternal genome alongside a suite of structures, proteins and RNAs. Although the role of some of the structures and proteins as requisite elements for early human development has been established, the function of the sperm-delivered RNAs remains a point for discussion. The presence of RNAs in transcriptionally quies...
Small RNAs play important roles in early embryonic development. However, their expression dynamics and modifications are poorly understood because of the scarcity of RNA that is obtainable for sequencing analysis. Using an improved deep sequencing method that requires as little as 10 ng of total RNA or 50 oocytes, we profile small RNAs in mouse oocytes and early embryos. We find that microRNA (...
sperms are highly specialized cells for delivering dna from male to the ovum. incredibly, wide degree of diversity in sperm morphology in their basic structures i.e. head, middle piece and tail is found across species. differences in terms of overall size of the sperm, shape and number of sperm produced are also incredible. one of the key for this variations or diversity in sperm may be associa...
A comprehensive overview of bull sperm-borne small non-coding RNAs and their diversity across breeds
Spermatogenesis involves coordinated processes, including meiosis, to produce functional gametes. We previously reported Topaz1 as a germ cell-specific gene highly conserved in vertebrates. knockout males are sterile with testes that lack haploid cells because of meiotic arrest after prophase I. To better characterize –/– testes, we used RNA-sequencing analyses at two different developmental st...
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