Which of the Following Most Directly Demonstrates That Genetics Play

question 240

Multiple Choice

Which of the following most directly demonstrates that genetics play an important role in obesity?

• A)Scientists have determined that most of the time, a single gene appears to determine obesity.
• B)Identical twins raised apart are about as similar in body mass as identical twins raised together.
• C)Technological advances have decreased the need for daily physical activity.
• D)Obesity rates in the United States and Canada have increased rapidly in the past few years.

---

Definitions:

Motor Fibers

Motor fibers are nerve fibers that transmit impulses from the nervous system to muscles, causing them to contract and produce movement.

Sensory Root

The part of a spinal nerve that carries sensory information from the peripheral body parts back to the spinal cord.

Dorsal Root

The part of a spinal nerve that carries sensory neural information to the spinal cord from the peripheral organs.

Motor Root

The part of a spinal nerve that carries motor signals from the spinal cord to the muscles.