What Is the Source of the Extra Chromosome 21 in an Individual

question 19

Multiple Choice

What is the source of the extra chromosome 21 in an individual with Down syndrome?

• A)Nondisjunction in the mother only
• B)Nondisjunction in the father only
• C)Duplication of the chromosome
• D)Nondisjunction or translocation in either parent
• E)It is impossible to detect with current technology

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Definitions:

Recent Phenomenon

An event, trend, or development that has emerged or become prominent in the near past.

Distributive Justice

The perceived fairness of the allocation of resources and rewards among individuals or groups within a society or an organization.

Special Needs

Refers to individuals who require additional or specialized services due to physical, mental, emotional, or learning disabilities.

Equipment

Items used for a specific purpose, often related to machinery or tools.