Biology

pachytene

Term: pachytene

Literally meaning: ?thick band?

Origin: Anc Greek

?????/pachys(=fat, dense) >??????/pactoo(=block, shut)

??????/taenia(=band, ribon)> ?????/tanyo(=strain)

Coined/History

In 1912 by The Belgian cytologist and gynecologist Hans von Winiwarter (1875-1949) who had an interest in the nature of gender determination, reported from his studies of fetal ovaries that the human diploid chromosome number was probably 48.

Definition

Pachytene is one of the stages of prophase I in which the homologous chromosomes become short and thick and divide into four distinct chromatids.

- Diploid Chromosome Number
Humans have a diploid chromosome number of 46 chromosomes. In other words, there are a total of 46 chromosomes in human cells. The diploid number varies depending on each species. Having a diploid chromosome number means that an organism?s cells contain...

- Tendonitis
Term: tendontitis Literally meaning: ?inflammation of a tendon? Origin: Anc Greek?????/teino (=extend) > ?????/tanyo(=strain, stretch) > ??????/taenia(=band, ribon) +(-????)/-???? (=-itis, suffix meaning ?pertaining to? or ?inflammation?.)...

- Diplotene
Term: diplotene Literally meaning: ?double bands? Origin: Anc Greek??????/diplos( =duplex) > ??-/di-(=prefix meaning twice) > ???/dis(=two, double)??????/taenia(=band, ribon)> ?????/tanyo(=strain) Coined/HistoryIn 1912 by The Belgian cytologist...

- Zygotene
Term: zygoteneLiterally meaning: ?yoked bands?Origin: Anc Greek?????/zygos(=yoke, doubled)??????/taenia(=band, ribon)> ?????/tanyo(=strain)Coined/Historyby V Gregoire (1907) DefinitionZygotene is one of the stages of prophase I in which the homologous...

- Taenia
Term: taeniaLiterally meaning: ?band?Origin: Anc Greek??????/taenia(=????)> ?????/tanyo(=strain)Coined/HistoryDefinitionBand, ribbon...

Biology