Question

Differentiate between trisomic and triploid conditions?

Answer 1

Trisomy and triploid:

Trisomy refers to the presence of three homologous chromosomes in the nucleus whereas, triploidy refers to the presence of three sets of chromosomes.

Trisomy	Triploidy
1. It refers to the condition when there is the presence of an additional copy of a chromosome in the genome.	1. Triploidy is a condition in which there is presence of an extrachromosomal set in diploid organisms.
2. It is a type of aneuploidy.	2. It is a type of euploidy.
3. Three homologous chromosomes are present.	3. Three extra sets of chromosomes are present.
4. It is commonly observed in both animals and plants.	4. It is commonly observed in plants only.
5. It causes an imbalance in the number of gene products.	5. It may lead to the formation of a new species.
6. Many abnormalities such as Down's syndrome are caused by trisomy.	6. Many severe conditions in humans are caused by triploidy.