The ratio of red light (R) to far-red light (FR) varies remarkably in different environments. This ratio can be defined as follows:

TLS Online TPP Program

#Id: 6619

#Unit 7. System Physiology – Animal

Inhibin is produced by ovarian granulosa cells, Inhibits FSH secretion from the anterior pituitary.

TLS Online TPP Program

#Id: 6620

#Unit 7. System Physiology – Animal

Activin is also produced by ovarian granulosa cells and stimulates FSH secretion.

TLS Online TPP Program

#Id: 6621

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 2004

#Unit 8. Inheritance Biology

The color of our hair is caused largely by a pigment called melanin

a. Eumelanin-black or brown

b. Pheomelanin-red or yellow

TLS Online TPP Program

#Id: 2005

#Unit 8. Inheritance Biology

Melanin protects against the harmful effects of sunlight, and people with red hair are usually fair skinned and particularly susceptible to skin cancer.

TLS Online TPP Program

#Id: 2006

#Unit 8. Inheritance Biology

Melanocortin-1 receptor gene (MC1R) was located on human chromosome 16.