Multiple choice

Organisms with the highest and the least number of chromosomes are _____________, respectively.

  1. Tympanoctomys barrerae and Myrmecia pilosula

  2. Myrmecia pilosula and Ophioglossum reticulatum

  3. Ophioglossum reticulatum and Myrmecia pilosula

  4. Tympanoctomys barrerae and Drosophila melanogaster

  5. Ophioglossum reticulatum and Tympanoctomys barrerae
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ophioglossum reticulatum (2n = 1260): Highest known number of chromosomes in any life form. Myrmecia pilosula (2n = 2): 2 for females, males are haploid and thus have one; smallest number of chromosomes among all organisms.

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