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    * Latest "Sex-chromosome" in the News * 

 

 

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New Sex Chromosomes Created After Decades Long Experiment  Sciworthy

Sexually reproducing animals have their sex determined through many mechanisms. Sex in reptiles such as alligators is determined by egg temperature during ...

Split-Sex Animals Are Unusual, Yes, but Not as Rare as You’d Think  The New York Times

From butterflies to chickens to lobsters, mixed male-female bodies offer clues as to why certain diseases strike one sex more often than the other.

How birds become male or female, and occasionally both  Phys.Org

The highly unusual "semi-identical" Australian twins reported last week are the result of a rare event. It's thought the brother and sister (who have identical genes ...

Males as somatic investment in a parthenogenetic nematode  Science Magazine

In parthenogenetic species, females produce female offspring, generally without the input of males. Given this, the production of males would seem to be a ...

This Bird's Body Is Half Male, Half Female. So Is Its Brain.  Live Science

A gorgeous two-tone cardinal photographed in Pennsylvania may be a rare gynandromorph — a half-male, half-female bird.

Doctors Identify Very Rare 'Semi-Identical' Twins | Smart News  Smithsonian.com

There is only one other known case of this unusual type of conception, which happens when an egg is fertilized by two sperm.

On the Biology of Sex, Sex Differentiation, and the Performance Gap  Reason

To borrow from the recent NYT editorial about anti-vaxxers, "sometimes it's ok to get out of the grey zone." Scientists are generally "uncomfortable with ...

Scientists identify genetic mechanism involved in how females inherit traits  EurekAlert

Female cells randomly and permanently shut off one of the X chromosomes during embryonic development through a process called X chromosome inactivation ...

WHAT’S UP DOC? Retinitis pigmentosa  Wicked Local

Q: Retinitis pigmentosa runs in my fiancé's family. Should he get tested before we have kids?A: Light enters the eye through the cornea and is focused onto the ...

Stop talking about testosterone – there’s no such thing as a ‘true sex’  The Guardian

Sports bodies want a biological criterion to indicate an athlete's sex. But it's far more complicated than that, writes academic Katrina Karkazis.

Sex Chromosomes Extend Female Lifespan  Laboratory Equipment

In female laboratory mice, X marks the spot. The X chromosome, that is. Researchers at the University of California - San Francisco have revealed that the ...

Discover the progressive evolution of sex chromosomes  Health Europa

University of Konstanz published new findings of the evolution of sex chromosomes that ran for 30 years on the genomic mechanisms of sex determination in ...

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The X in Sex: How the X Chromosome Controls Our Li
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Children and Young Adults with Sex Chromosome Aneuploidy Birth... (NoDust)
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X in Sex: How the X Chromosome Controls Our Lives (Paperback or Softback)
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Children with Sex Chromosome Aneuploidy : Follow-U
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X in Sex : How the X Chromosome Controls Our Lives, Paperback by Bainbridge, ...
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Children and Young Adults with Sex Chromosome Aneu
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The X in Sex: How the X Chromosome Controls Our Lives: By Bainbridge, David
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X in Sex : How the X Chromosome Controls Our Lives
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Reversion of XO to XY Sex Chromosome Mechanism in a Phasmid
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A Chromosome Difference Correlated With Sex Differences In Sphaerocarpos
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Sex chromosome - Wikipedia
An allosome (also referred to as a sex chromosome, heterotypical chromosome, heterochromosome, or idiochromosome) is a chromosome that differs from an ordinary autosome in form, size, and behavior. The human sex chromosomes, a typical pair of mammal allosomes, determine the sex of an individual created in sexual reproduction.Autosomes differ from allosomes because autosomes appear in pairs ...

sex chromosome | Definition, Examples, & Facts ...
Sex chromosome, either of a pair of chromosomes that determine whether an individual is male or female.The sex chromosomes of human beings and other mammals are designated by scientists as X and Y.In humans the sex chromosomes comprise one pair of the total of 23 pairs of chromosomes. The other 22 pairs of chromosomes are called autosomes.

UpToDate
INTRODUCTION. Sex chromosome abnormalities are due to numeric abnormalities (eg, aneuploidies such as monosomy X) or structural defects (eg, isochromosome Xq leading to Turner syndrome) involving the X and Y chromosomes.

What is sex-chromosome mosaicism? - Accord Alliance
Most people have 46 chromosomes in each of their cells, and two of those 46 chromosomes are sex chromosomes. Most girls and women have two X sex chromosomes (so we say their chromosomal component is “46,XX”).

ZW sex-determination system - Wikipedia
The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), and some reptiles, including Komodo dragons.The letters Z and W are used to distinguish this system from the XY sex-determination system.. In contrast to the XY sex-determination system ...

Klinefelter Syndrome Support Group website
DISCLAIMER The information, text, graphics, and links provided on this site are provided for those seeking information about Klinefelter Syndrome/XXY.

WHO | Gender and Genetics
Sex Chromosome Abnormalities. Chromosomes are the structures that carry genes which in turn transmit hereditary characteristics from parents to offspring.

Perform some fruit fly crosses :: DNA from the Beginning
Problem in Concept 10: Chromosomes carry genes, DNA from the Beginning.

Gulf News
Latest news and analysis from the worlds of business, politics, sport, lifestyle and culture from Gulf News, the Middle East's biggest selling English newspaper, and largest online news site.

XYY Syndrome - EverydayHealth.com
XYY syndrome is a rare chromosomal birth defect that occurs when a male infant is born with an extra Y chromosome. Instead of having one X and one Y sex chromosome, those with XYY syndrome have ...


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