Question

In the graph, the red bars show that males with more older brothers are more likely to be gay as adults than first-born males are. This is called the ________ Interestingly, the effect only shows up with right-handed males. To learn why this is the case will require more research.

Answer 1

The fraternal birth order effect is a phenomenon where males with more older brothers have a higher likelihood of being gay. This effect is only significant in right-handed males and points to complex biological factors influencing sexual orientation. It highlights the ongoing research necessary to understand the intricate nature of sexual identity development.

Step-by-step explanation:

The phenomenon described where males with more older brothers are more likely to be gay as adults than first-born males is called the fraternal birth order effect. This effect is one of the various factors researched in the area of sexual orientation, which seeks to understand the complex interplay between genetics, hormonal influence, developmental factors, social conditions, and cultural variables. The observation that the effect appears more prominently in right-handed males adds an additional layer of complexity and suggests that multiple biological mechanisms may be at play, necessitating further research to unpack these findings.

It is important to note that pioneering studies like those from Kinsey laid the groundwork for conceptualizing sexuality as a continuum rather than a strict binary. Still, no definitive link has been established between sexual orientation and a singular influencing factor. Research into the development of sexual orientation, including the origins of the fraternal birth order effect and its intricacies, remains an ongoing endeavor within the scientific community.