27 September 2019
Vol 365, Issue 6460

About The Cover

Cover image expansion

COVER Genes present a blueprint directing molecular machinery to create an adult human, but phenotype also depends on environmental factors. Shown are genetically distinct individuals (highlighted) shadowed by other phenotypes they may have displayed under different developmental conditions. This special issue examines the complexity of translating genotype to phenotype, including how varied environments may affect the developing phenotype. See page 1394.
Illustration: Davide Bonazzi/@salzmanart