Germ cells, the reproductive cells that eventually become eggs and sperm, are set aside early in embryonic development, when the embryo is just a hollow ball of cells called the gastrula. This means that the cells transferring ...
Cell & Microbiology
Nov 1, 2022
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3
Scientists analyzing the effects of an organic compound on drug resistance bacteria have discovered how it can inhibit and kill a germ that causes serious illness or in some cases death.
Molecular & Computational biology
Oct 28, 2022
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663
Functional telomeres protect chromosome ends and play essential roles in stem cell maintenance and differentiation. Over the past decade, telomeres have attracted increasing attention due to their role in fertility. Short ...
Cell & Microbiology
Oct 17, 2022
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29
When producing our germ cells—egg and sperm—a special feature is required in the cell division process: Since male and female germ cells fuse during fertilization, the chromosome set of our genetic material, which is ...
Cell & Microbiology
Oct 12, 2022
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20
Health experts recommend against washing chicken before cooking it because that can spread harmful bacteria. But if you're among the nearly 70% of people who do, according to a survey of U.S. grocery shoppers, there are ways ...
Soft Matter
Sep 26, 2022
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8
During fruit fly embryo formation, primordial germ cells—the stem cells that will later form eggs and sperm—must travel from the far end of the embryo to their final location in the gonads. Part of the primordial germ ...
Cell & Microbiology
Sep 16, 2022
0
18
Scientists have known that sex-determination in vertebrates happens in the germ cells, a body's reproductive cells, and the somatic cells, the cells that are not reproductive cells. Yet they have not fully understood the ...
Plants & Animals
Sep 9, 2022
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72
Totipotency is the ability of a cell to develop into an individual through elaborate processes of embryogenesis and is created during the development of the precursors of sperm and eggs, which are called germline cells. Understanding ...
Cell & Microbiology
Aug 22, 2022
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18
Certain species of bacteria in the gut interact with and help balance levels of dietary cholesterol by using it to create a molecule that plays important roles in human health, according to a study published August 18 in ...
Cell & Microbiology
Aug 18, 2022
1
257
During cell division, chromosomes are replicated into two copies—one for each daughter cell. These copies, called sister chromatids, are usually considered identical. In fact, it's the two pairs of sister chromatids that ...
Molecular & Computational biology
Jul 28, 2022
0
97
