Behavior Genetic Studies Have Revealed That Fraternal Twins Reared Together

question 136

Multiple Choice

Behavior genetic studies have revealed that fraternal twins reared together and identical twins reared together are equally similar on Trait Q. This indicates the importance of:

• A)shared genetics.
• B)nonshared genetics.
• C)shared environment.
• D)nonshared environment.

---

Definitions:

Bursae

Small fluid-filled sacs located between bones and soft tissues, acting as cushions to reduce friction and allow free movement.

Synovial Membrane

A specialized connective tissue that lines the inner surface of capsules of synovial joints and tendon sheath, producing synovial fluid for lubrication.

Air

The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.

Blood Vessels

Cylindrical formations responsible for transporting blood all over the body, encompassing arteries, veins, and capillaries.