In most animals and plants, the life cycle of an individual begins with fertilization, when egg and sperm fuse to combine their genetic material. Together, they form the zygote, the first cell of an embryo that will eventually ...
Cell & Microbiology
Sep 24, 2021
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Scientists have shown for the first time that embryos can be made from non-egg cells, a discovery that challenges two centuries of received wisdom.
Cell & Microbiology
Sep 13, 2016
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An international research team has observed cell fusion in flowering plants for the first time in more than a century. The discovery demystifies how plants prevent the attraction of excessive pollen tubes after a successful ...
Cell & Microbiology
Apr 22, 2016
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Christmas seems an appropriate time to ask whether it's biologically possible to have a virgin birth. And you may be surprised to hear that it is possible – just not for humans, or any other mammals.
Plants & Animals
Dec 18, 2015
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Researchers have developed new methods to trace the life history of individual cells back to their origins in the fertilised egg. By looking at the copy of the human genome present in healthy cells, they were able to build ...
Cell & Microbiology
Jun 29, 2014
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There is nothing intrinsic to pandas that makes them bad at breeding. It is true that they only have one menstrual cycle each year, but this is true of many creatures. Animals that have multiple cycles per year, such as humans, ...
Plants & Animals
Apr 8, 2014
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Chemical signals used by the eggs of broadcast spawning invertebrates to assist sperm in fertilisation could also play a role in sexual selection, or mate choice.
Plants & Animals
Oct 2, 2013
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A novel approach in the study of the development of mammalian embryos was today reported in the journal Nature Communications. The research, from the laboratory of Professor Magdalena Zernicka-Goetz of the University of Cambridge, ...
Cell & Microbiology
Feb 14, 2012
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Almost 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 of cells that will become sperm ...
Biotechnology
Aug 3, 2009
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