miscellaneous slide












words and music by Greg Crowther


Mitosis is a process (mitosis is a process)
By which you split your genes.
It happens in four phases (it happens in four phases)
Of one extended scene (of one extended scene).

Prophase, metaphase, anaphase, telophase.
(Prophase, metaphase, anaphase, telophase.)
Prophase, metaphase, anaphase, telophase.
(Prophase, metaphase, anaphase, telophase.)

Now prophase is the first phase (now prophase is the first phase):
The chromosomes appear (the chromosomes appear).
In metaphase, they line up (in metaphase, they line up)
In the middle of the sphere (in the middle of the sphere).


The chromosomes are split up (the chromosomes are split up)
As anaphase goes by (as anaphase goes by),
And telophase then seals 'em (and telophase then seals 'em)
In brand-new nuclei (in brand-new nuclei).



This song, originally written for a GEAR UP minicourse at the University of Washington, is a call-and-response number. The teacher or song leader sings a line, and then the students or chorus members echo that same line.

Questions: (1) Why do the chromosomes "appear" during prophase? Were they invisible before that? (2) During metaphase, the chromosomes line up "in the middle of the sphere." What is the sphere? (3) Is the splitting of the chromosomes into the two daughter nuclei a random process? Answers: (1) The chromosomes condense into a more compact form so that they may be more easily seen. (2) The "sphere" is the about-to-divide cell (which is often roughly spherical in shape, but not always). (3) The process is NOT random; one copy of each chromosome is distributed to each daughter nucleus, such that both daughter nuclei wind up with the same genetic material.

Other Files

[None at present -- updated sheet music coming soon!]