BIO 2133 Lecture Notes - Lecture 1: Polytene Chromosome, Salivary Gland, Instar
4 Sep 2018
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Insert your two photos for each of the two treatments without and with heat shocking along with a brief descriptive caption. A brief caption should indicate the content (polytene chromosomes), the origin (salivary glands of 3rd instar larvae of drosophila virilis) as well as the magnification (400x). Write your captions as clearly and concisely as possible; avoid including unnecessary details. Polytene chromosome from the isolated salivary gland of the 3rd instar larvae of the fruit fly, drosophila virilis. This is at the magnification of 400x and at room temperature of 25 c. Polytene chromosome after a brief heat shock treatment of 37 c from the isolated salivary gland of the 3rd instar larvae of the fruit fly, drosophila virilis, at a magnification of 400x. Yes, there are visible differences that are observed. These differences are shown through areas of puffing .
