See Also: polytene(dictionary)
polytene(medicine)
polytene chromosome(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
medicine(1)(dictionary)
medicine(2)(dictionary)
medicine(dictionary)
medicine man(encyclopedia)

polytene (medicine)


polytene


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.