what does being born with an extra y chromosome mean
XYY syndrome XYY syndrome is a genetic condition in which a male has an extra Y chromosome.[1] Symptoms are usually few.[3] They may include being taller than average, acne, and an increased risk of learning problems.[1][3] The person is generally otherwise normal, including normal fertility.[1]
Generation Z Generation Z or Gen Z (also known as iGeneration or iGen and Post-Millennials)[1] is the demographic cohort after the Millennials (Generation Y). Currently, there are numerous additional competing names used in connection with them in the media. There are no precise dates for when this cohort starts or ends, but demographers and researchers typically use the mid-1990s to mid-2000s as starting birth years. At the present time, there is little consensus regarding ending birth years.