Match General Transcription Factors with their functions;

i. TAFs	A. Appears to regulate the binding of TBP to DNA. It does this using an inhibitory flap that binds to the DNA-binding surface of TBP, another example of molecular mimicry. This flap must be displaced for TBP to bind TATA.
ii. TFIIB	B. Insert into the RNA-exit channel and active center cleft of Pol II in a manner analogous to the sigma region 3/4 linker in the bacterial case.
iii. TFIIH	C.  As an ATP-driven translocator of double-stranded DNA.
iv. TFIIF	D. This two-subunit (in humans) factor associates with Pol II and is recruited to the promoter together with that enzyme.

TLS Online TPP Program

#Question id: 11319

#Unit 10. Ecological Principles

Which of the following plant defensive compounds is found at high levels in oak leaves?

TLS Online TPP Program

#Question id: 11320

#Unit 10. Ecological Principles

What are secondary compounds of plants?

TLS Online TPP Program

#Question id: 11321

#Unit 10. Ecological Principles

What is a constitutive plant defense?

TLS Online TPP Program

#Question id: 11322

#Unit 10. Ecological Principles

Which color of light predominates with increasing depth in aquatic ecosystems?

TLS Online TPP Program

#Question id: 11323

#Unit 10. Ecological Principles

Upwelling zones of high biological productivity are found along the western coasts of the major continents. What causes this upwelling?

TLS Online TPP Program

#Question id: 11324

#Unit 10. Ecological Principles

Many temperate lakes develop pronounced thermal stratification during the summer months. In which zone of such lakes does temperature change most rapidly with depth?