17. Thanks For Nothing, Mom
While this aspect of genetics may not be commonly discussed, it underscores the role of inheritance in shaping physical characteristics. The X chromosome carries various genes related to development and reproduction, including those influencing genital size.

As such, individuals inherit one X chromosome from their mother, which may contain things associated with specific traits. Understanding the genetic basis of physical attributes can provide insight into how traits are passed down through generations and contribute to our understanding of human variation and development.