It's not that simple! Hairiness, or the presence of a lot of body hair, is not determined by a single gene. It's a complex trait influenced by multiple genes and environmental factors.

Here's a breakdown:

* Multiple genes: Different genes contribute to things like hair follicle development, hair growth rate, and hair thickness.

* Environmental factors: Hormones, nutrition, and even stress can affect hair growth.

So, to answer your question more precisely:

* There is no single "hairiness gene" that is dominant or recessive.

* The overall amount of body hair is a result of the interplay of multiple genes and environmental influences.

Let me know if you have other genetics questions!