Anthocyanin pigments stored in vacuoles

Color the petals of many flowers so as to attract pollinating insects

TLS Online TPP Program

#Id: 9923

#XL - T Zoology

TLS Online TPP Program

#Id: 8168

#XL - Q Biochemistry

Rab GTPases 

associate with transport vesicles and act as key regulators of vesicle trafficking to and fusion with the appropriate target membrane.

TLS Online TPP Program

#Id: 8762

#XL - T Zoology

Thermostable proteins have such a high incidence of salt bridges.

TLS Online TPP Program

#Id: 8100

#XL - T Zoology

Sphingolipids contain a single fatty acid, in amide linkage to the sphingosine backbone.

TLS Online TPP Program

#Id: 9389

#XL - T Zoology

Male stickleback fish develop red colour on their ventral side in the breeding season and maintain territories. 

When a conspecific male intruder enters their territory, resident males perform an aggressive display. 

The ethologist Niko Tinbergen presented models of different shapes to territorial male stickleback fish. He found that models of any shape elicited aggressive displays, provided the ventral part of the models was coloured red.