Evidence from Twin Studies Has Shown That the Highest Heritability

question 163

Multiple Choice

Evidence from twin studies has shown that the highest heritability coefficient has been found for which of the following personality dimensions?

• A) extraversion
• B) openness to experience
• C) neuroticism
• D) agreeableness

---

Definitions:

Embryo

An early stage in the development of an organism, following fertilization and continuing until it becomes a fetus.

Fetus

Developing human following the embryonic period (after 8 weeks of development).

Genital Tubercle

Median elevation just cephalic to the urogenital orifice of an embryo; gives rise to the penis of the male or the clitoris of the female.

Clitoris

Small, cylindrical, erectile body, rarely exceeding 2 cm in length, situated at the most anterior portion of the vulva and projecting beneath the prepuce.