Damage caused by singlet oxygen and its reactive products can decrease the efficiency of photosynthesis in a process known as photoinhibition.

TLS Online TPP Program

#Id: 1237

#Unit 7. System Physiology – Animal

TSH(thyrotropin)   Controls the secretion rate of thyroxine and triiodothyronine by the thyroid gland.

TLS Online TPP Program

#Id: 7693

#Unit 1. Molecules and their Interaction Relevant to Biology

                                                           aa motif / Coiled-coils

Two helices are wound around each other

Alpha-helices are packed together through the hydrophobic interactions

These two helices are found to be stable in solution

They are generally found in transcription factors and intermediate filaments

They have heptad (7 amino acid) repeated sequences


TLS Online TPP Program

#Id: 400

#Unit 2. Cellular Organization

MacroH2A is nearly three times larger than conventional H2A, and contains a large C-terminal tail that is not related to any other histone.

TLS Online TPP Program

#Id: 6482

#Unit 3. Fundamental Processes

Sp1 contains three zinc fingers, 25% of their amino acid residues are Gln

TLS Online TPP Program

#Id: 7421

#Unit 5. Developmental Biology

when flies have a mutation wherein the Antennapedia gene is expressed in the head (as well as in the thorax), legs rather than antennae grow out of the head sockets