Imagine That Dr

question 83

Multiple Choice

Imagine that Dr.Alvarez and Dr.Chao find that some individuals with obsessive-compulsive disorder (OCD) have a particular allele that those without OCD do not.Which of the following conclusions would be most warranted?

• A) that the allele is partially responsible for the disorder
• B) that individuals without the allele cannot have OCD
• C) that identical twins who both have the allele would both have OCD
• D) that if we could modify this allele, we could cure OCD

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Definitions:

Lacteals

Specialized lymphatic capillaries located in the intestinal villi, involved in the absorption of dietary fats.

Photomicrograph

An image taken with a microscope to show a magnified view of microscopic structures.

Simple Squamous Epithelium

A single layer of flat cells lining surfaces involved in substance exchange, like blood vessels and lung alveoli.

Areolar Connective Tissue

Areolar connective tissue is a loose connective tissue that supports and cushions organs, and is characterized by a matrix with collagen and elastin fibers.