Loss of Biodiversity 

Direct ways: Deforestation, hunting, poaching, commercial exploitation.

Indirect ways: Loss or modification of the natural habitats, introduction of exotic species, pollution, etc.

Natural causes - Climate change

TLS Online TPP Program

#Id: 671

#Unit 3. Fundamental Processes

In mammals, six telomeric proteins (TRF1, TRF2, Rap1, TIN2, TPP1, and POT1) comprise a complex called shelterin

TLS Online TPP Program

#Id: 9890

#Unit 4. Cell Communication and Cell Signaling

Conserved motifs, usually present in many copies on the surface of a bacterium, fungal cell, parasite, or virus particle, are called pathogen-associated molecular patterns (PAMPs).

TLS Online TPP Program

#Id: 3172

#Unit 3. Fundamental Processes

Deletion of the ter sites does not, however, prevent normal replication cycles from occurring, although it does affect segregation of the daughter chromosomes.

TLS Online TPP Program

#Id: 3508

#Unit 2. Cellular Organization

Genes that share a common ancestry have similar organizations with conservation of the positions of the introns.

TLS Online TPP Program

#Id: 6870

#Unit 3. Fundamental Processes

Rap1 recruits Sir4 on acetylated histones, then recruits both its binding partner Sir3 and the HDAC Sir2. 

Sir3 and Sir4 then interact directly with histones H3 and H4. Once Sir3 and Sir4 have bound to histones H3 and H4, 

Sir2 deacetylates histones

Sir2-dependent deacetylation represses transcription.