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Definition of Polytene
1. Adjective. (molecular biology) Having very large chromosomes with many strands ¹
2. Noun. (molecular biology) A very large chromosome with many strands; a chromosome exhibiting polyteny ¹
¹ Source: wiktionary.com
Definition of Polytene
1. having chromosomes of a certain type [adj]
Medical Definition of Polytene
1. A giant chromosome which is composed of thousands of copies of DNA parallel to one another instead of the usual one copy of DNA per chromosome. They are found in the salivary glands of insects, in certain protozoans, and in flowering plants. As found in the larvae of the fruit fly Drosophila melanogaster, they are useful to geneticists because all of the details are greatly enlarged. (09 Oct 1997)
Lexicographical Neighbors of Polytene
Literary usage of Polytene
Below you will find example usage of this term as found in modern and/or classical literature:
1. Science by American Association for the Advancement of Science (1883)
"4 May 1970 Puffing and Histone Acetylation in polytene Chromosomes Abstract.
Fixation with picric acid or formaldehyde retains incorporated [:H]acetate ..."
2. Directory of Federal Laboratory and Technology Resources: A Guide to (1993)
"... morphogenesis of myofibrils; structure of polytene chromosomes; mechanisms
for cell motility; imaging of cytoskeleton after detergent extractions; ..."
3. Transposable Elements in Plants: Sponsored CRIS/ICAR Projects and Bibliography by Andrew Kalinski (1995)
"The genomic clone pC6.10 was previously obtained by microdissection and cloning
of DNA from polytene chromosome IV of Chironomus thummi. ..."
4. Gene Transfer in Animal Systems: Bibliography, 1985-1991 (1993)
"Southern blot experiments and in situ hybridization to polytene chromosomes
demonstrated that the isolated cDNAs, were derived from two ..."
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