Share this entry

Share this page

polytene

Syllabification: pol·y·tene
Pronunciation: /ˈpäləˌtēn
 
/

Definition of polytene in English:

adjective

Genetics
Relating to or denoting a giant chromosome that is composed of many parallel copies of the genetic material, as found in Drosophila fruit flies, where they are much used in genetic research.
Example sentences
  • The structures of rearrangements were defined by mitotic chromosome staining as well as by genetic and polytene chromosome analysis.
  • Anopheline mosquitoes, like Drosophila, are renowned for the presence of polytene chromosomes and chromosomal inversions.
  • It was mapped in Drosophila by polytene chromosome in situ to 3L heterochromatin.

Origin

1930s: from poly- 'many' + -tene (from Greek tainia 'band, ribbon') denoting stages of the first meiotic division.

Definition of polytene in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day terpsichorean
Pronunciation: ˌtərpsikəˈrēən
adjective
of or relating to dancing