News tagged with paternity
Discovery of plant 'nourishing gene' brings hope for increased crop seed yield and food security
University of Warwick scientists have discovered a "nourishing gene" which controls the transfer of nutrients from plant to seed - a significant step which could help increase global food production.
Jan 13, 2012 |
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Paternity of subordinates raises cooperative effort in cichlids
Cichlid male nannies help out, especially if they've been sneaking.
Oct 12, 2011 |
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New research finds promiscuousness results in genetic 'trade-up,' more offspring
It's all about the grandkids! That's what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair.
Aug 31, 2011 |
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Chickens eject sperm from males they don't fancy
New research finds that even though hens aren't terribly picky about their mates, they are picky about whose sperm makes it to the egg.
Aug 25, 2011 |
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The machinery for recombination is part of the chromosome structure
During the development of gametes, such as egg and sperm cells in humans, chromosomes are broken and rearranged at many positions. Using state of the art technology, the research group of Franz Klein, professor for genetics ...
Aug 09, 2011 |
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Parental conflict in plants: Maternal factors silence paternal genes
In flowering plants, the beginning of embryogenesis is almost exclusively governed by maternal gene activity. Maternal factors regulate the development of the embryo and silence paternal genes during early ...
May 31, 2011 |
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Arranged unions and distrust: The influence of parental choice on mate guarding
Mate guarding is classified as excessive or unwarranted jealous or protective behavior towards a spouse or mate. This is common among many different species and can be useful to defend territory, guarantee paternity, or prevent ...
Other Sciences / Social Sciences
Feb 01, 2011 |
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Multiple fathers prevalent in Amazonian cultures
In modern culture, it is not considered socially acceptable for married people to have extramarital sexual partners. However, in some Amazonian cultures, extramarital sexual affairs were common, and people believed that when ...
Other Sciences / Social Sciences
Nov 10, 2010 |
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Parents at highest risk for depression in the first year after child's birth
More than one-third of mothers and about one-fifth of fathers in the United Kingdom appear to experience an episode of depression between their child's birth and 12th year of age, with the highest rates in the first year ...
Medicine & Health / Psychology & Psychiatry
Sep 06, 2010 |
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Mom's influence comes first: Maternal genes dominate in developing brains, while paternal ones lead in adult-hood
(PhysOrg.com) -- Genome-wide analysis of mice brains has found that maternally inherited genes are expressed preferentially in the developing brain, while the pattern shifts decisively in favor of paternal ...
Jul 08, 2010 |
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The importance of grandmothers in the lives of their grandchildren
(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...
Oct 29, 2009 |
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Maternal, paternal genes' tug-of-war may last well into childhood
(PhysOrg.com) -- An analysis of rare genetic disorders in which children lack some genes from one parent suggests that maternal and paternal genes engage in a subtle tug-of-war well into childhood, and possibly ...
Jul 28, 2009 |
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Mothers give interloper's offspring a head start in life
A new study has revealed that mother birds can provide an early advantage to the chicks that they have sired with their non-social partner (known as extra-pair offspring).
May 14, 2009 |
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Chromosome breakpoints contribute to genetic variation
A new study reveals that - contrary to decades of evolutionary thought - chromosome regions that are prone to breakage when new species are formed are a rich source of genetic variation.
Apr 23, 2009 |
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Children of older fathers perform less well in intelligence tests during infancy
Children of older fathers perform less well in a range of cognitive tests during infancy and early childhood, according to a study published this week in the open-access journal PLoS Medicine. In contrast, the study finds ...
Mar 09, 2009 |
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Paternity
Paternity may refer to:
For more information about Paternity, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
