Rare but Potent (IMAGE) Boston Children's Hospital Caption The genetic variants that increased or decreased height the most (1-2 cm) tend to be more rare (allele frequency or MAF under 5%). Credit Image courtesy GIANT Consortium investigators Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.