Genetics

Ex-NASA engineer Mark Rober created the world’s smallest Nerf gun — from DNA
New CRISPR system is 66% smaller but just as powerful
Adding spider DNA to silkworms creates silk stronger than Kevlar
Rare mutation may counteract “Alzheimer’s gene”
New CRISPR tool has an “on/off” switch
Arrays of quantum rods could enhance TVs or virtual reality devices
One-shot gene therapy for liver disorder works in a small trial
Extreme treatment for alcoholism slashes drinking by 90% in monkeys
Fragile X syndrome often results from improperly processed genetic material
New study shows how electricity can turn on genes