The interaction between NFR and SYMRK initiates calcium spiking in the nucleus, presumably via a second messenger molecule.

Core symbiotic genes are activated.

Cytokinin signaling is initiated.

TLS Online TPP Program

#Id: 3774

#Section 2: General Biology

Proton & neutron are found in the center of the atom, a place called the nucleus.

TLS Online TPP Program

#Id: 3773

#Section 2: General Biology

An atom has three parts: Proton carries positive charge, Electron carries negative charge, While Neutron carries no charge.

TLS Online TPP Program

#Id: 3772

#Section 2: General Biology

Matter is anything that takes up space and has mass.

TLS Online TPP Program

#Id: 8132

#Section 2: General Biology

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: 8131

#Section 2: General Biology

In most mammalian tissues, ubiquinone (also called coenzyme Q) has 10 isoprene units.

Dolichols of animals have 17 to 21 isoprene units (85 to 105 carbon atoms), bacterial dolichols have 11, and those of plants and fungi have 14 to 24.

TLS Online TPP Program

#Id: 8130

#Section 2: General Biology