Trisomy 8 Usually Leads to Early Miscarriage of a Fetus

question 34

Multiple Choice

Trisomy 8 usually leads to early miscarriage of a fetus. However, adult individuals have been found with cells that have three copies of chromosome 8 in them. How can this be?

• A) The trisomic 8 adults likely have a mosaic region with trisomy 8.
• B) The trisomic cells underwent complete nondisjunction.
• C) The trisomic cells underwent a meiotic nondisjunction.
• D) This individual must be triploid.

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Definitions:

Anxiety

A state of mental uneasiness, apprehension, or dread producing an increased level of arousal caused by an impending or anticipated threat to self or significant relationships.

Analyzing

The process of examining components or structure of a material or concept to understand its nature, typically to find patterns, associations, or insights.

Stress

A physical, mental, or emotional factor that causes bodily or mental tension, potentially leading to physical illnesses or psychological issues.

Shock Phase

The second stage of the general adaptation syndrome described by Selye.