Neural Cells Don’t Always Express Mom and Dad’s Genes Equally

We’re all the product of genes from both parents. But in the brain, neurons may favor genes from mom or dad far more than previously thought, which is an effect that could impact one’s risk for mental disorders.

Everybody generally receives two versions, or alleles, of each gene, one from each parent. The fact that each person has a spare copy of a gene in case the other is defective is one reason why scientists think sex evolved in the first place, says study senior author Christopher Gr

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