OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The polytene chromosomes were first reported by
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Winchester
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E.G. Balbiani
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Flemming
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Ruckert
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Explanation:
Detailed explanation-1: -Polytene chromosomes were first discovered in the 1880s in insects (Balbiani 1881). One of the earliest published examples of polytene chromosomes is of Chironimus salivary gland chromosomes found in Walther Flemming’s 1882 book, Zellsubstanz, Kern, und Zelltheilung (Flemming 1882).
Detailed explanation-2: -Polytene chromosomes are large chromosomes found in the salivary glands of insects. Balbiani discovered them in 1881.
Detailed explanation-3: -The name ‘polytene chromosome’ was suggested by Kollar. The chromosome of the salivary gland is a polytene chromosome. Polytene chromosomes are also salivary gland chromosomes because they were discovered in salivary gland cells.
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