Which condition results from a trisomy of chromosome 18? Which type of chromosomal abnormality involves gaining two extra chromosomes? Which of the following describes Pentasomy?
Understand the Problem
The questions are asking about conditions related to chromosomal abnormalities, specifically trisomy of chromosome 18 and the terminology related to chromosomal gain. The user seeks to understand genetic syndromes associated with chromosomal variations.
Answer
Edwards syndrome; Tetrasomy; Gain of three extra chromosomes.
The condition resulting from a trisomy of chromosome 18 is Edwards syndrome. The type of chromosomal abnormality that involves gaining two extra chromosomes is tetrasomy. Pentasomy describes the gain of three extra chromosomes.
Answer for screen readers
The condition resulting from a trisomy of chromosome 18 is Edwards syndrome. The type of chromosomal abnormality that involves gaining two extra chromosomes is tetrasomy. Pentasomy describes the gain of three extra chromosomes.
More Information
Edwards syndrome, or trisomy 18, is a severe condition affecting many parts of the body. Tetrasomy involves gaining two extra chromosomes. Pentasomy results in three extra chromosomes, leading to complex syndromes like Penta X.
Tips
Confusing the number of extra chromosomes in conditions like trisomy and tetrasomy can lead to mistakes.
Sources
- Trisomy 18 - Genetics - MedlinePlus - medlineplus.gov
- Penta X Syndrome - Symptoms, Causes, Treatment | NORD - rarediseases.org
- Supernumerary Chromosome - an overview | ScienceDirect Topics - sciencedirect.com
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