Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?
A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.
Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?

A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.

A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.

anthropology, ecology, developmental biology, cell & molecular biology
Some Viruses May Infect by Inserting Different Portions of Genetic Material
Some Viruses May Infect by Inserting Different Portions of Genetic Material
Emma Yasinski | Mar 18, 2019
Viruses that infect plants and occasionally insects appear to cause infection with a divide-and-conquer strategy, multiplying separate segments of genetic material in different host cells.
Chemogenetics Method Uses Anti-Smoking Drug to Control Cells
Chemogenetics Method Uses Anti-Smoking Drug to Control Cells
Ruth Williams | Mar 14, 2019
A new set of engineered receptors responds to an FDA-approved drug to provide the most potent chemogenetic toolkit to date.
Image of the Day: Taken to Heart
Image of the Day: Taken to Heart
Carolyn Wilke | Mar 14, 2019
By zooming in on a developing mouse heart, scientists are studying whether defects in vasculature contribute to a thin muscle wall.
Without This Enzyme, Insertions Thrive in the Yeast Genome
Without This Enzyme, Insertions Thrive in the Yeast Genome
Katarina Zimmer | Mar 1, 2019
A study underscores the importance of Dna2 in maintaining the integrity of the genetic code.
The Challenge of Using CRISPR to Knock In Genes
The Challenge of Using CRISPR to Knock In Genes
Anna Nowogrodzki | Mar 1, 2019
Researchers are developing an array of techniques for accurately and efficiently inserting genes into DNA.
Humans Made Tools Atop the Tibetan Plateau More than 30,000 Years Ago
Humans Made Tools Atop the Tibetan Plateau More than 30,000 Years Ago
Shawna Williams | Mar 1, 2019
A finding pushes back the timeline on humankind’s conquest of one of Earth’s harshest environments, and may provide clues about interactions with their hominin relatives.
Infographic: How Stray DNA Can Land in Double-Strand Breaks
Infographic: How Stray DNA Can Land in Double-Strand Breaks
Katarina Zimmer | Mar 1, 2019
A study on yeast illuminates how insertions may occur.
Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins
Catherine Offord | Feb 28, 2019
The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.
HeLa Cells from Different Labs Vary in Genetics, Phenotype
HeLa Cells from Different Labs Vary in Genetics, Phenotype
Katarina Zimmer | Feb 26, 2019
This could account for some reproducibility problems in cell line research, according to the authors of a comprehensive analysis of HeLa variants.