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tetrad |
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tetrad 1. a group or series of four 2. the number four 3. Botany a group of four cells formed by meiosis from one diploid cell 4. Genetics a four-stranded structure, formed during the pachytene stage of meiosis, consisting of paired homologous chromosomes that have each divided into two chromatids 5. Chem an element, atom, group, or ion with a valency of four 6. Ecology a square of 2 × 2 km used in distribution mapping tetrad [′te‚trad] (cell and molecular biology) A group of four chromatids lying parallel to each other as a result of the longitudinal division of each of a pair of homologous chromosomes during the pachytene and later stages of the prophase of meiosis. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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falling-film still falling-sphere viscometer Fallingwater falloff curve Fallopian tube Fallopius Fallopius, Gabriel Fallot's tetrad fallout fallout area fallout shelter fallout winds Falloux Law fallover fallow |
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