Many insect pest species also transmit viruses. The sapsucking species are effective virus vectors, delivering virus particles directly into the vascular tissue, thereby permitting their rapid dissemination throughout the plant

TLS Online TPP Program

#Id: 669

#Unit 3. Fundamental Processes

As a result of their modest telomerase activity, their telomeres shorten with each cell cycle.

TLS Online TPP Program

#Id: 670

#Unit 3. Fundamental Processes

Extensive shortening of telomeres is recognized by the cell as a double-strand break and consequently triggers cell cycle arrest and apoptosis.

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: 672

#Unit 3. Fundamental Processes

Duplex telomeric DNA interactions of TRF1 and TRF2 and the binding of POT1 to the single-stranded TTAGGG repeats.

TLS Online TPP Program

#Id: 673

#Unit 3. Fundamental Processes

Shelterin functions to protect telomeres from DNA damage repair pathways and to regulate telomere length control by telomerase

TLS Online TPP Program

#Id: 674

#Unit 3. Fundamental Processes

The telomerase uses the 3’–OH of the G+T telomeric strand as a primer for synthesis of tandem TTGGGG repeats.