Tetraploid
Tetraploid
Tetraploid (pronunciation: te-truh-ploid) is a term used in genetics to describe a cell or organism that has four sets of chromosomes.
Etymology
The term "tetraploid" is derived from the Greek words "tetra," meaning four, and "ploos," meaning fold. It was first used in the early 20th century to describe organisms with four sets of chromosomes.
Definition
A tetraploid is an organism or cell that contains four complete sets of chromosomes, or four haploid sets. This is twice the diploid number, which is the number of chromosomes present in most body cells of an organism.
Related Terms
- Diploid: An organism or cell that contains two complete sets of chromosomes.
- Polyploid: An organism or cell that contains more than two paired sets of chromosomes.
- Haploid: An organism or cell that contains a single set of unpaired chromosomes.
- Chromosome: A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
See Also
External links
- Medical encyclopedia article on Tetraploid
- Wikipedia's article - Tetraploid
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