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Sex, Tools And Chromosomes

Published: April 12, 2012.
By University of California - Davis

Researchers at the University of California, Davis have discovered a key tool that helps sperm and eggs develop exactly 23 chromosomes each. The work, which could lead to insights into fertility, spontaneous miscarriages, cancer and developmental disorders, is published April 13 in the journal Cell.

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More news from University of California - Davis

Watching the Structure of Glass Under Pressure
Glass has many applications that call for different properties, such as resistance to thermal shock or to chemically harsh environments. Glassmakers commonly use additives such as boron oxide to tweak these properties by changing the atomic structure of glass. Now researchers at the University of California, Davis, have for the first time captured atoms in borosilicate glass flipping from one structure to another as it is placed under high pressure.
Prions Can Trigger 'Stuck' Wine Fermentations, Researchers Find
A chronic problem in winemaking is "stuck fermentation," when yeast that should be busily converting grape sugar into alcohol and carbon dioxide prematurely shuts down, leaving the remaining sugar to instead be consumed by bacteria that can spoil the wine.
Pesticide DDT Linked to Slow Metabolism, Obesity And Diabetes
Exposure of pregnant mice to the pesticide DDT is linked to an increased risk of obesity, diabetes, high cholesterol and related conditions in female offspring later in life, according to a study led by the University of California, Davis.
Stress-tolerant Tomato Relative Sequenced
The genome of Solanum pennellii, a wild relative of the domestic tomato, has been published by an international group of researchers including the labs headed by Professors Neelima Sinha and Julin Maloof at the UC Davis Department of Plant Biology. The new genome information may help breeders produce tastier, more stress-tolerant tomatoes.
NMR Under Pressure: Reproducing Deep-Earth Chemistry
A new pressure cell invented by UC Davis researchers makes it possible to simulate chemical reactions deep in the Earth's crust. The cell allows researchers to perform nuclear magnetic resonance (NMR) measurements on as little as 10 microliters of liquid at pressures up to 20 kiloBar.
Die-offs of Band-tailed Pigeons Connected to Newly Discovered Parasite
A new pathogen has been discovered by scientists investigating major die-offs of pigeons native to North America, according to studies led by the University of California, Davis, and the California Department of Fish and Wildlife.
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A Call to Arms for Synthetic Biology
By National Science Foundation
Scientists have replaced all of the DNA in the arm of a yeast chromosome with computer-designed, synthetically produced DNA that is structurally distinct from its original DNA to produce …
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By San Francisco State University
SAN FRANCISCO, Nov. 11, 2013 -- When an E. coli cell divides, it must replicate its circular chromosome and pull the resulting circles apart to take up residence in …
MIT Team Builds Most Complex Synthetic Biology Circuit Yet
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DNA and protein sequencing have forever transformed science, medicine, and society. Understanding the structure of these complex biomolecules has revolutionized drug development, medical diagnostics, forensic science, and our understanding …
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