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Question

Which one possesses giant chromosomes?

A
Drosophila
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B
Xenopsylla
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C
Branchiomyces
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D
Mouse
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Solution

The correct option is A Drosophila
  • The salivary gland chromosome is also known as polytene chromosomes.
  • These chromosomes are found during the interphase stage of the cell division in the nuclei of the salivary gland cells of the larvae of Diptera (fruitfly or Drosophila melanogaster).
  • These are also known as giant chromosomes and are smaller than lampbrush chromosomes.
  • So, the correct answer is 'Drosophila'.

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