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: 18945

#Unit 13. Methods in Biology

PCR can be used to generate single-stranded copies of a DNA sequence; this is called

TLS Online TPP Program

#Question id: 28070

#Unit 6. System Physiology – Plant

Water splitting/ oxygen evolution is initiated by presence of 

a. P680*

b. P680

c. P680+

TLS Online TPP Program

#Question id: 2714

#Unit 2. Cellular Organization

HAT enzymes react with the side-chain of lysine to form the following structure. What effect will the HAT enzymes have on histones?

TLS Online TPP Program

#Question id: 12443

#Unit 10. Ecological Principles

r-strategists typically

TLS Online TPP Program

#Question id: 12608

#Unit 10. Ecological Principles

The  amount of  chemical energy in  consumers? food that is  converted to  their own  new biomass during a  given time period is known as which of the following?