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Sexual reproduction without mating

Scientists identify edible wild mushroom with complex reproductive structure, challenging traditional understanding of fungal reproduction. The study reveals a new type of reproduction that recombines genetic information without a mate, potentially increasing ecological fitness and adapting to previously unsuitable habitats.

SourceRuhr-University Bochum·JournalJournal of Fungi·DateJul 6, 2021

New repair mechanism for DNA breaks

Researchers at the University of Seville have identified new factors necessary for repairing chromosomal breaks that can cause cell death. The discovery involves proteins modifying histones, which are essential for chromosome structure and cohesion.

SourceUniversity of Seville·JournalNature Communications·DateFeb 10, 2020

Parents' comparisons make siblings different

A new study from Brigham Young University found that parents' beliefs about their children can influence sibling differences, particularly in academic achievement. The study discovered a significant difference in GPA among participants whose parents believed one child was smarter than the other.

SourceBrigham Young University·JournalJournal of Family Psychology·DateJun 16, 2015

Mutation associated with premature ovarian failure identified

A new study identifies a specific mutation in the MCM8 gene as a cause of premature ovarian failure. The mutation leads to chromosomal instability and DNA repair problems, affecting women's reproductive health. Researchers found that siblings without the mutation did not experience similar symptoms.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 1, 2014

How infidelity helps nieces and nephews

A University of Utah study supports the theory that men help their sisters' children because they are more likely to carry genes from their mother. The new mathematical model relaxes assumptions previously made, showing that men are more likely to share genes with their sister's kids than under the old theory.

Note to dads: Good parenting makes a difference

A new study published in Development and Psychopathology found that quality parenting skills by dads significantly reduces the incidence of risky sexual behavior in their daughters. The study, led by Bruce J. Ellis, showed that girls who receive lower quality fathering tend to engage in more risky sexual behavior in adolescence.

SourceUniversity of Arizona·JournalDevelopment and Psychopathology·DateJun 14, 2011

Study shows extreme form of pregnancy-related morning sickness could be genetic

A new study led by researchers from UCLA and USC found that pregnant women whose sisters had hyperemesis gravidarum are 17 times more likely to experience the condition. Women with a family history of extreme morning sickness may be aware they may also have it, highlighting the importance of taking a family history into account.

SourceUniversity of California - Los Angeles Health Sciences·JournalAmerican Journal of Obstetrics and Gynecology·DateNov 4, 2010

The essential ingredients of supportive sibling relationships

Research suggests that reducing conflict is not enough to create a positive sibling relationship. Parents should focus on encouraging positive interactions, such as scheduling family activities and teaching problem-solving skills. By doing so, they can help their children develop skills that will benefit them throughout their lives.