The new terminology for down’s syndrome is ?
**Core Concept**
Down's syndrome is a genetic disorder caused by an extra copy of chromosome 21, leading to intellectual disability and characteristic physical features. The new terminology aims to replace outdated and stigmatizing language, promoting a more person-centered approach.
**Why the Correct Answer is Right**
The correct answer is **Trisomy 21**, which refers to the presence of an extra copy of chromosome 21. This terminology is preferred over Down's syndrome as it is more accurate and less stigmatizing. The extra copy of chromosome 21 leads to an overexpression of genes involved in cell growth and division, contributing to the characteristic features of the disorder.
**Why Each Wrong Option is Incorrect**
**Option A:** is incorrect as it is not a commonly used or accepted term in medical literature.
**Option B:** is incorrect as it is a term used to describe a different genetic disorder, not Down's syndrome.
**Option C:** is incorrect as it is not a recognized or accepted term in the field of genetics.
**Clinical Pearl / High-Yield Fact**
It is essential to use person-first language when referring to individuals with Down's syndrome, emphasizing their humanity and individuality. This approach promotes a more inclusive and respectful environment for patients and families.
**Correct Answer: A. Trisomy 21**