Chromosomes that do not serve a function in determining the gender of an individual are called

Autosomes

Explanation:

An autosome is a chromosome in a eukaryotic cell that is not a sex chromosome. Unlike prokaryotic cells, eukaryotic cells have many chromosomes in which they package their DNA. This allows eukaryotes to store much more genetic information. Basically it just isn't their job.

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a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.