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Posted by on Sunday, November 1, 2009 at 9:21pm.

A biologist is studying the epithelial cells in a variety of plants and animals. She counts the chromosomes in the epithelial cells of several organisms and finds the following numbers:

Organism A: 32 chromosomes
Organism B: 26 chromosomes
Organism C: 24 chromosomes
Organism D: 22 chromosomes
Organism E: 27 chromosomes
Organism F: 12 chromosomes
Organism G: 9 chromosomes
Organism H: 14 chromosomes
Organism I: 38 chromosomes

Assuming that there are no significant mutations represented in these organisms, is it possible that any two or more of these organisms are from the same species? If so, what organisms could possibly be from the same species?

  • Science - , Sunday, November 1, 2009 at 11:53pm

    If there are "no significant mutations," wouldn't all the members of the same species have the same number (the species number) of chromosomes in their epithelial cells?

    I hope this helps. Thanks for asking.

  • Science - , Tuesday, November 3, 2009 at 8:15am

    This person is cheating in a contest that SPECIFICALLY says you cannot post the question in a public forum. This person is also violating copyright, as the person has copied directly from the website where the question was posted.

  • Science - , Monday, May 23, 2016 at 7:35pm


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