Who can forget the stomach-churning moments when "Survivor" contestants forced down crunchy insects, among other unappetizing edibles, for a chance to win $1 million? In daring culinary challenges, the TV show's contestants ...
Sep 7, 2023
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The ovary is the female gonad responsible for producing eggs to create new life, and it is also the primary aging organ in women. As a heterogeneous organ, the ovary is composed of various types of cells, including germ cells ...
Aug 8, 2023
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More than three months after suffering from mild COVID infection, men have lower sperm concentrations and fewer sperm that are able to swim, according to new findings presented at the 39th annual meeting of the European Society ...
Jun 26, 2023
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Cancer is often seen as a disease that arises from genetic mutations causing cells to divide uncontrollably and invade other parts of the body. But the spread of cells away from their origins is actually a normal process ...
Feb 10, 2023
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Researchers identified a higher rate of clonal hematopoiesis (CH) and prevalence of treatment-induced STAT3 gene mutations in blood samples from a large cohort of survivors of pediatric cancer, compared with age-matched controls.
Feb 8, 2023
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Extra copies of a piece of DNA partly explain insensitivity to chemotherapy in germ cell cancer, a new study shows. According to research leader Prof. Dr. Leendert Looijenga, "In the future, our findings could help pick out ...
Apr 20, 2022
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Inheriting a normal and intact number of chromosomes in germ cells, egg and sperm, is essential for the preservation of all species. With increasing age, the risk of the egg cell not inheriting the normal set of chromosomes ...
Feb 4, 2022
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Around half of the genome is made up of transposable elements or 'jumping genes' that derive from ancient viral integrations. They persist in various states of decay like an old fashioned 'pull your own' junkyard where parts ...
Sometimes the best way to understand a biological process is to disrupt the normal process and analyze the result.
Nov 17, 2021
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For species that rely on sexual reproduction, including mice and men, offspring can only happen if sperm from the male fertilize eggs from the female. Even artificial fertilization techniques depend on donors for both of ...
Sep 7, 2021
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Germ cells are progenitors of the gametes. These singled-out cells move through the gut to the developing gonads and undergo mitotic proliferation followed by meiosis and differentiation into either eggs or sperm (mature gametes). Plants do not have a germ line set aside in early development. Instead germ cells can come from somatic cells in the adult floral meristem.
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