Science news articles about 'mouse sperm'

... percent – a six-fold increase over previous mouse sperm freezing techniques. The results were achieved ... $10,000 a year to maintain a particular mouse strain, and worldwide only a few hundred strains ...

... , at Clermont Universite, France, have identified a protein that helps protect immature mouse sperm after they have been released into a region of the testis known as the epididymis, which is where ...

... way from being authentic sperm cells". Reactions two years ago, when the same team not only grew mouse sperm from embryonic cells but used it to produce baby mice, were somewhat warmer, which perhaps ...

... , has identified a key protein that suppresses jumping genes in mouse sperm and found that the protein is vital to sperm formation. "There is a tiny cell component that is unique to germ cells—the ...

... collect her eggs, fertilize them with sperm and freeze the resulting embryos. However, this option ... eggs they contained to mature, fertilized them with mouse sperm and implanted them into female mice ...

... eggs they contained to mature, fertilized them with mouse sperm, and implanted them into female mice ... monkeys in culture. The ability to do research on mouse and monkey follicles might lead to advances ...

... DNA needs to be very tightly coiled, or packaged. The Leeds study showed that in human and mouse sperm, not all of the DNA is packaged in the same way. Whilst most of the paternal DNA is compressed ...