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A freshman is performing an experiment in the lab after finishing his first year. He is working with germ cells isolated from mammalian tissue and finds that the germ cells are only capable of forming one gamete. The student has repeated the experiment several times and is confident he is performing it correctly.

What is the MOST likely explanation for this student’s findings?


The isolated cell is a spermatogonium because a single spermatogonium leads to the formation of a single sperm.


The isolated cell is an oogonium because a single oogonium leads to the formation of one gamete.


The student is isolating somatic stem cells and not germ cells.


The tissue is isolated from an animal with a chromosomal abnormality.

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