News articles tagged with 'germ' (Page 2)
Protecting cells from their neighbours
— 4 Aug 2009 11:23 | BiologyAlmost all organisms evolve from a single cell, a fertilised egg. In the first hours after fertilisation, the fate of its future development is determined. It is dictated by the separation…
Human sperm created from embryonic stem cells
— 8 Jul 2009 14:28 | HealthHuman sperm have been created using embryonic stem cells for the first time in a scientific development which will lead researchers to a better understanding of the causes of infertility…
Second gene linked to familial testicular cancer
— 30 Jun 2009 13:04 | HealthSpecific variations or mutations in a particular can gene raise a man's risk of familial, or inherited, testicular germ-cell cancer, the most common form of this disease, according…
Scientists discover specific small RNA pathways protect germ line from transposons
— 6 May 2009 17:43 | HealthCells of higher organisms are in a constant struggle against some of their own DNA - repeated bits of DNA sequence called transposons that have infiltrated host genomes over the eons.…
Single factor converts adult stem cells into embryonic-like stem cells
— 6 Feb 2009 12:28 | BiologyThe simple recipe scientists earlier discovered for making adult stem cells behave like embryonic-like stem cells just got even simpler. A new report in the 6th February issue of the…
Human induced plurtipotent stem cells reprogrammed into germ cell precursors
— 27 Jan 2009 16:48 | HealthFor the first time, UCLA researchers have reprogrammed human induced pluripotent stem (iPS) cells into the cells that eventually become eggs and sperm, possibly opening the door for…
Cueing up at the meiotic starting line
— 12 Dec 2008 10:06 | BiologyMeiosis, the process of halving a germ cell's chromosomes in preparation for egg or sperm production, has been one of the most studied areas of cell biology. But in mammals, the field…
Maelstrom quashes jumping genes
— 12 Aug 2008 17:08 | BiologyScientists have known for decades that certain genes (called transposons) can jump around the genome in an individual cell. This activity can be dangerous, however, especially when…
Why your fertility cells must have radio silence
— 30 Jan 2008 06:14 | HealthResearchers in Kobe, Japan, and Montreal, Canada, have uncovered a previously unknown mechanism which causes embryonic germ cells - which later develop into sperm or ova - to go through…