TLS Online TPP Program

#Id: 8132

#XL - Q Biochemistry

Lipids as pigments in plants and bird feathers.

Birds acquire the pigments that color their feathers red or yellow by eating plant materials that contain carotenoid pigments, such as canthaxanthin and zeaxanthin.

The differences in pigmentation between male and female birds are the result of differences in intestinal uptake and processing of carotenoids.

TLS Online TPP Program

#Id: 9272

#XL - S Microbiology

TLS Online TPP Program

#Id: 9655

#XL - T Zoology

Feedback regulation by MAP Kinase

Phosphorylation of threonine residue in HER1 decreases the ability of the receptor kinase to become fully active.

TLS Online TPP Program

#Id: 8004

#XL - T Zoology

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

TLS Online TPP Program

#Id: 8868

#XL - R Botany