Pages in this set

Page 1

Preview of page 1
Hair Colour
The dark pigment in skin and hair is called melanin which is made in melanocytes; these are activated by the melanocyte-stimulating
hormone (MSH).There are receptors for MSH on the surface of melanocyte cells. People with more receptors have darker skin and hair.

UV light increases the amount of…

Page 2

Preview of page 2
Many studies have supported the very complex interaction between childhood environment and the MAOA genotype.

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »