News tagged with xx chromosome
Human sperm created from embryonic stem cells (Update)
(PhysOrg.com) -- Human sperm have been created using embryonic stem cells for the first time in a scientific development which will lead researchers to a better understanding of the causes of infertility.
Jul 08, 2009 |
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Search results for xx chromosome
Worms can evolve to survive intersex populations
(PhysOrg.com) -- Sexually reproducing species need at least two sexes in order to produce offspring, but there are many ways that nature produces different sexes. Many animals (including humans and other mammals) ...
Dec 06, 2011 |
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Scientists construct, to maintain complementary DNA libraries of first lizard genome sequence
Scientists at Indiana University Bloomington's Center for Genomics and Bioinformatics are credited with constructing the cDNA libraries for the first-ever genome sequence of a non-bird reptile, the North American ...
Sep 30, 2011 |
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New genetic region responsible for testicle development found
New research presented today at the European Society for Paediatric Endocrinology meeting has found a genetic region, which may control testicle development in the foetus.
Sep 26, 2011 |
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Bijou's abnormally large clitoris leads to big surprise
Bijou is an 18-month old French bulldog that appears perfectly normal at first glance. She is healthy and her behavior is exemplary. However, her owner brought her to the Université de Montréal Faculty ...
Sep 22, 2011 |
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First lizard genome sequenced
(PhysOrg.com) -- The green anole lizard is an agile and active creature, and so are elements of its genome. This genomic agility and other new clues have emerged from the full sequencing of the lizard's genome ...
Aug 31, 2011 |
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Researchers discover gene required to maintain male sex throughout life
University of Minnesota Medical School and College of Biological Sciences researchers have made a key discovery showing that male sex must be maintained throughout life.
Jul 20, 2011 |
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Boy or girl? Understanding how red-tailed hawks migrate
(PhysOrg.com) -- As any resident of upstate New York will tell you, the red-tailed hawk is the most common hawk in North America. Often seen perched on light and telephone poles along major highways, this ...
Jun 27, 2011 |
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First French bulldog with sex reversal identified in Spain
Tana, a female French bulldog, was brought to a veterinary centre for her first vaccination. Specialists there were alerted by the size of her clitoris, which was "larger than normal", and they started to ...
Mar 23, 2011 |
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Study may lead to greater understanding of human genome regulation
Many multi-cellular animals use sex chromosomes to determine sex. In fruit flies and in humans, this produces XX for females and XY for males. Cellular mechanisms then kick into gear to compensate the two-to-one imbalance ...
Mar 04, 2011 |
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Brain gene makes a female develop as a male
Australian scientists have discovered that changes to a gene involved in brain development can lead to testis formation and male genitalia in an otherwise female embryo.
Dec 22, 2010 |
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List of search results for xx chromosome
