At a particular location, the gene has two versions: an "A" (adenine) variant and a "G" (guanine) variant. Several studies have suggested that people with at least one "A" variant have an increased sensitivity to stress, poorer social skills and worse mental health outcomes.
The researchers found that people who have either two "A" nucleotides or one "A" and one "G" at this specific location on the oxytocin receptor gene have substantially lower levels of optimism, self-esteem and mastery and significantly higher levels of depressive symptoms than people with two "G" nucleotides.
Ppl like me and Kennybaby must have the "A" Polymorphism. While Yang Guo, who was more social, might have a more complex variation (like a structural variation or block substitution)
here's a quiz question for the scientifically inclined. Based strictly on the info above, which allele is likely to be the dominant allele?