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    * Latest "Sex-chromosome" in the News * 

 

 
TxSt collaboration identified new sex chromosome formation in swordtail fish  San Marcos Daily Record

What makes two species different? The role of selfish genes in distinguishing a species  Science Daily

For most of the 20th century, scientists believed that the reproductive incompatibility between species evolved gradually as a by-product of adapting to different ...

The difference between two species comes down to selfish genes  Earth.com

Two species are not different solely based on reproductive incompatibility from adapting to separate environments, as was previously thought.

Why do women live longer than men?  Portsmouth Daily Times

Will Durant, the prolific historian and philosopher, once said something like, “women are so powerful that if it wasn't for men keeping them op.

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 ...

30 years of experimental evolution results in a new sex chromosome  EurekAlert

On Dec. 3, 2018, the laboratory of Professor Axel Meyer, University of Konstanz published new findings of an experimental evolutionary project that ran for 30 ...

Sex chromosomes hold the secret to female longevity  University of California

Around the world, women outlive men. This is true in sickness and in health, in war and in peace, even during severe epidemics and famine. In most animal ...

Jumping genes drive sex chromosome changes in strawberries  Phys.org

The transfer of gene cassettes across generations of strawberry plants has been shown to drive changes in sex chromosomes, according to a team led by a ...

Thirty Years of Experimental Evolution Results in New Sex Chromosome  Laboratory Equipment

Researchers published the findings of an experimental project that ran for 30 years on the genomic mechanisms of sex determination in swordtail fish.

Sex chromosome may explain why women generally outlive men  Earth.com

Females generally live longer than males, and researchers from UC San Francisco may have found an explanation for why this is.

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 ...

What Role Do Sex Chromosomes Play In Transgender People's Identities?  Forbes

What role do sex chromosomes play in the identities of transgender people? This question was originally answered on Quora by Sai Janani Ganesan.

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     Internet Search Results 

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-determination system - Wikipedia
The XX/XY sex-determination system is the most familiar, as it is found in humans. The XX/XY system is found in most other mammals, as well as some insects.In this system, most females have two of the same kind of sex chromosome (XX), while most males have two distinct sex chromosomes (XY).

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.

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.

The End of Men? Male Sex Chromosome Is Slowly Disappearing
This article was originally published on The Conversation. Read the original article. The Y chromosome may be a symbol of masculinity, but it is becoming increasingly clear that it is anything but ...

Basic Principles of Genetics: Glossary of Terms
an inherited metabolic disorder in which there are abnormally high blood sugar levels. In advanced stages, this often results in blindness from cataracts, nerve damage, gangrene in the feet and legs leading to amputation, heart disease, and kidney failure.Type 1 diabetes melitis (juvenile onset diabetes) is due to decreased production of insulin by the pancreas.

性染色体 - Wikipedia
哺乳類や鳥類の性染色体は、有羊膜類(哺乳類・鳥類・爬虫類およびその祖先を含むタクソン)の常染色体から約3億1千万年-3億2千年前に分化を始めたと考えられている(右図) 。 哺乳類・鳥類・ヘビ亜目の性染色体の配列類似性は低く、それぞれ異なった常染色体から性染色体に分化してき ...

Stages of development of from a human ovum to a fetus
About 1 month before conception: Almost all adult males produce thousands of spermatozoa (a.k.a. gametes or male germ cells) each second.Through a process called "meiosis" the number of chromosomes in each spermatozoon produced is half the normal number found in human DNA: 23 instead of 46.

determinante - Diccionario Inglés-Español WordReference.com
determinante - Traduccion ingles de diccionario ingles. Principal Translations: Spanish: English: determinante adj mf adjetivo de una sola terminación: Adjetivos de una sola terminación en singular ("amable", "constante") pero que sí varían en plural ("amables", "constantes"). (decisivo, esencial) determining, decisive adj adjective: Describes a noun or pronoun--for example, "a tall girl ...

How to Start Gamefowl Breeding
Gamefowl breeding is a tedious and lengthy undertaking that requires full time attention. If you don’t have the heart for it, don’t do it.

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