News tagged with egg cell
Research suggests cells communicate via biophotons
(Phys.org) -- Biologists have long been familiar with luminescence in organisms, where plants and animals produce visible light, but more intriguing perhaps is the newer field of study centered around biophotons, ...
May 23, 2012 |
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Central nervous system stem cells shed light on mechanism that controls asymmetrical division
Animals consist of many distinct cell types, all of which originate during development from a single cell: the fertilized egg. To generate this vast cellular diversity, the egg and its descendants must divide ...
May 18, 2012 |
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From embryonic stem cells, a sperm replacement and easier path to genetic modification
Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploi ...
Apr 26, 2012 |
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Egg Cetera #1: The immortal egg
In the first report of our Egg Cetera series on egg-related research, biologists Dr. Harry Leitch and Professor Azim Surani describe how advances in understanding egg development could transform reproductive ...
Apr 06, 2012 |
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Ovastacin cuts off sperm binding
A study in The Journal of Cell Biology describes how a secreted enzyme helps egg cells avoid being fertilized by more than one sperm.
Apr 02, 2012 |
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Molecular ticket determines RNA's destination and speed inside egg cell
Like any law-abiding train passenger, a molecule called oskar RNA carries a stamped ticket detailing its destination and form of transport, scientists at the European Molecular Biology Laboratory (EMBL) in ...
Mar 18, 2012 |
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S.Korean, Russian scientists bid to clone mammoth
Russian and South Korean scientists have signed a deal on joint research intended to recreate a woolly mammoth, an animal which last walked the earth some 10,000 years ago.
Mar 13, 2012 |
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Lineage trees reveal cells' histories
In recent years, a number of controversial claims have been made about the female mammal's egg supply – that it is renewed over her adult lifetime (as opposed to the conventional understanding that she is born with all ...
Feb 23, 2012 |
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Scientists now able to view critical aspects of mammalian embryonic development using new technique
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 ...
Feb 14, 2012 |
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Under the microscope #8 - beetle embryo
Under the Microscope is a collection of videos that show glimpses of the natural and man-made world in stunning close-up.
Feb 14, 2012 |
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Without second wave of brown fat, young mice can't live without mama
For all those who have wondered where they'd be without their mothers, a study reported in the February Cell Metabolism puts a whole new spin on the question. Mice whose mothers pass along a mutant copy of a single imprin ...
Feb 07, 2012 |
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Japan, Russia see chance to clone mammoth
Scientists from Japan and Russia believe it may be possible to clone a mammoth after finding well-preserved bone marrow in a thigh bone recovered from permafrost soil in Siberia, a report said Saturday.
Dec 04, 2011 |
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Inadequate supply of protein building blocks may explain pregnancy failures in bovine cloning experiments
Amino acids, the building blocks of proteins, are essential to support the normal growth of a developing embryo and the placenta. An insufficient supply of amino acids in the mother's uterus caused by abnormal ...
Oct 26, 2011 |
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Study shows Alzheimer's disease-related peptides form toxic calcium channels in the plasma membrane
Alzheimer's disease is triggered by the inappropriate processing of amyloid precursor protein to generate excess amounts of short peptide fragments called A-beta. For many years, the neurodegeneration associated with Alzheimer's ...
Oct 24, 2011 |
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How Wolbachia bacteria controls vectors of deadly diseases
Researchers at Boston University have made discoveries that provide the foundation towards novel approaches to control insects that transmit deadly diseases such as dengue fever and malaria through their study of the Wolbachia bacter ...
Oct 20, 2011 |
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Ovum
An ovum (plural ova, from the Latin word ovum meaning egg or egg cell) is a haploid female reproductive cell or gamete. Both animals and embryophytes have ova. The term ovule is used for the young ovum of an animal, as well as the plant structure that carries the female gametophyte and egg cell and develops into a seed after fertilization. In lower plants and algae, the ovum is also often called oosphere.
For more information about Ovum, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
