Reproductive cells, such as an egg and sperm, join to form stem cells that can mature into any tissue type. But how do reproductive cells arise? We humans are born with all of the reproductive cells that we will ever produce. ...
Biotechnology
Mar 16, 2014
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The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the ...
Biotechnology
Nov 21, 2013
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0
When Charles Babbage prototyped the first computing machine in the 19th century, he imagined using mechanical gears and latches to control information. ENIAC, the first modern computer developed in the 1940s, used vacuum ...
Cell & Microbiology
Mar 28, 2013
8
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Human cells have a finite lifespan: They can only divide a certain number of times before they die. However, that lifespan is reset when reproductive cells are formed, which is why the children of a 20-year-old man have the ...
Biotechnology
Jun 24, 2011
15
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Remote lochs along the west coast of Scotland are turning up new evidence about the origins of life on land.
Paleontology & Fossils
Apr 13, 2011
0
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Human embryonic stem cells derived from excess IVF embryos may help scientists unlock the mysteries of infertility for other couples struggling to conceive, according to new research from the Stanford University School of ...
Cell & Microbiology
Oct 28, 2009
0
1
Are you a man or a mouse? A new paper, published in this week's issue of PLoS Biology, explores exactly what distinguishes our genome from that of the lab mouse. In the first comprehensive comparison between the genes of ...
Cell & Microbiology
May 27, 2009
0
0
Using liverwort (Marchantia polymorpha) as a model, researchers led by Prof. Li Hongju from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences have explored the molecular mechanism of sperm ...
Plants & Animals
Jun 3, 2024
0
1
Stem cells play a vital role in repairing damaged tissue, whether it's a scraped knee or a scarred uterus following pregnancy. New stem cell research has identified the molecules that the cells produce to promote the healing ...
Cell & Microbiology
May 30, 2024
0
11
Although assisted reproductive technologies (ARTs), such as in vitro fertilization (IVF), have had a tremendous impact on treating certain forms of infertility—not all forms of infertility can be targeted with existing ...
Cell & Microbiology
May 21, 2024
0
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