tetraploid

American  

[te-truh-ploid] / ˈtɛ trəˌplɔɪd /

adjective

Biology.

1. having a chromosome number that is four times the basic or haploid number.

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noun

1. a tetraploid cell or organism.

tetraploid British  

/ ˈtɛtrəˌplɔɪd /

adjective

1. having four times the haploid number of chromosomes in the nucleus

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noun

1. a tetraploid organism, nucleus, or cell

Other Word Forms

• tetraploidy
  noun

Etymology

Origin of tetraploid

First recorded in 1925–30; tetra- + -ploid

Example Sentences

What's more, in established tetraploid populations of sand rock-cress, the genes in question are often slightly different to the versions found in diploid individuals.

From Science Daily • Apr. 16, 2024

Coloured branches, tetraploid species: red, quinoa; blue, C. berlandieri; yellow, C. hircinum.

From Nature • Feb. 7, 2017

After the whole genome duplication, the mutated plant and its tetraploid descendants had two copies of its genome in the nucleus of its cells.

From Slate • Jun. 11, 2014

It has four copies of its genome, which makes it tetraploid.

From Scientific American • May 19, 2013

The normal number in the gamete, 7, is considered the simple or haploid number, and therefore the number 28 is called tetraploid.

From Hormones and Heredity by Cunningham, J. T.