Since the first reports of successful cloning of mammals by somatic cell nuclear transfer, concerns have been raised about the efficiency and repeatability of cloning techniques, and the health of cloned offspring. Although ...
Biotechnology
Apr 1, 2013
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Biologists at the University of Pennsylvania studying oocytes in mice, the immature egg cells necessary for sexual reproduction, have demonstrated an unusual behavior in microRNA, or miRNA, activity that may be the first ...
Cell & Microbiology
Feb 3, 2010
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The protein necessary for fertility in both sexes performs distinctly different roles in male and female gametes, according to a groundbreaking study, which included researchers from the University of Georgia College of Veterinary ...
Cell & Microbiology
Jan 30, 2015
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The many types of cells in the human body are produced through the process of differentiation, in which stem cells are converted to more specialized types. Currently, it is challenging for researchers to control the differentiation ...
Cell & Microbiology
May 25, 2023
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Even worms have a ticking fertility clock. Older worms are less efficient at repairing broken DNA strands while making egg cells—part of a process that's essential for fertility. A new study from University of Oregon (UO) ...
Cell & Microbiology
Dec 5, 2022
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88
The error-free division of mouse oocytes—the precursors of eggs—needs kinetochores that are rich in a specific microtubule crosslinker, RIKEN researchers have discovered. This finding could explain why the division of ...
Plants & Animals
Jul 31, 2020
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Not unlike looking for the proverbial needle in a haystack, a team of Michigan State University researchers have found a gene that could be key to the development of stem cells – cells that can potentially save millions ...
Cell & Microbiology
Jul 17, 2014
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(Phys.org)—A research team from the University of California has identified two reprogramming events that occur during the development of oocytes and sperm leading to the formation of gametes in humans. In studying aborted ...
Northwestern Medicine scientists discovered a new and unique transport mechanism within developing egg cells in fruit flies, according to a study published in eLife.
Cell & Microbiology
Mar 14, 2022
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Muhammad Anzar, a research scientist for Agriculture and Agri-Food Canada, is an expert in cryopreservation—you know, freezing living matter to cheat death.
Biochemistry
Jan 19, 2015
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