Polytene chromosomes were first observed by___________________?
Correct answer: B. Balbiani (1881)
- A. Mendel (1810)
- B. Balbiani (1881)
- C. Allard (1910)
- D. Baranetzky (1910)
Explanation
Polytene chromosomes were first described by Édouard-Gérard Balbiani in 1881 from the salivary glands of dipteran larvae. Their unusually large, banded appearance results from repeated DNA replication without cell division.
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