Some chemicals that cause cancers are not mutagenic to begin with, but rather are converted into mutagens by the liver, which metabolizes foreign substances. 

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.