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
Not all species need sperm to fertilize an egg for sexual reproduction. Some species need sperm in order to induce completion of egg nucleus development, but then never use the sperm's DNA. I describe how this self-sexual ...
Plants & Animals
Feb 19, 2021
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7
Approximately 120-130 million years ago, one of the most significant events in the history of the Earth occurred: the first flowering plants, or angiosperms, arose. In the late 1800s, Darwin referred to their development ...
Plants & Animals
Sep 14, 2009
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0
In contrast to women, men are fertile throughout life, but research at the Sahlgrenska Academy, University of Gothenburg, Sweden, has now shown that a fertilising sperm can get help from the egg to rejuvenate. The result ...
Cell & Microbiology
Mar 25, 2009
0
0
