Sentence examples for development of sperm from inspiring English sources

Scientists have developed a chemical contraceptive that temporarily blocks the development of sperm but does not interfere with testosterone levels.

In this experiment, sperm quality, fertilization and hatching rate along with larval quality were found remarkably high in PUFA-treated group than control which resulted in physiological and morphological development of sperm as well as improvement of spawning performances of C. fasciatus.

Lab-based experiments can also help answer important questions about early human development and the development of sperm and eggs cells, says Robin Lovell-Badge, a developmental biologist at the Francis Crick Institute in London and a member of the Hinxton Group steering committee.

However, a main reason to think that these new genes really serve the sperm in its performing phenotype is that knockout of them disrupts the development of sperm.

These studies have considered various exposure durations before semen collection that encompass either the entire period of spermatogenesis (i.e., 90 days) or key periods of sperm development that correspond to epididymal storage, development of sperm motility, and spermatogenesis (i.e., 0 9, 10 14, and 70 90 days, respectively, before sample collection) (Johnson et al. 1997).

Therefore, we studied the relationship between air quality and sperm parameters at 0 9, 10 14, and 70 90 days before the date of semen collection, corresponding to epididymal storage, the development of sperm motility, and spermatogenesis, respectively (Johnson et al. 1997).

Transcriptional promiscuity (TP) occurs during the development of the sperm cells in cells at the meiotic stage (spermatocytes) and early haploid sperm cells (round spermatids) [ 212].

Further experiments revealed that HP1E is not inherited through the chromatin of mature sperm, but instead influences the structure of the chromosomes during the final stages of the development of the sperm cells in the fly testes.

Spermatogenesis, the origin and development of the sperm cells within the male reproductive organs, the testes.

"Most of the mouse Y chromosome genes are necessary for development of mature sperm and normal fertilization, both in mice and in humans.

An alternative approach being pioneered by Chuen Yan Cheng of the Population Council in New York relies on a chemical called adherin which interferes directly with the way key cells in the testes help to nurture the development of mature sperm.