Answer: A difference in environment (learned behavior) or gene variation (genetic behavior) can explain sharing genotypes but having different phenotypes.
Explanation: Environment plays a role in phenotypes, because you’re in environment can influence how you look for example, kids in unfortunate circumstances without access to food will grow shorter than if they were to be nourished at certain grow periods in their life (puberty and infancy).
Gene Variations play a part in phenotypes, because parents each have two copies of genes of which they each pass on one to their child. Their copies can be different and the copies passed on to kids are random.
