A. In mammalian systems the DNA polymerase does not have a 5’–3’ exonuclease activity

B. In eukaryotes Synthesis of an Okazaki fragment displaces the RNA primer of the preceding fragment in the form of a “flap.”

C. FEN1 functions as an endonuclease and also has a 5’–3’ exonuclease activity

D. FEN1 prevents deletions or duplications in the genome.

Choose true and false

TLS Online TPP Program

#Question id: 13114

#Unit 2. Cellular Organization

--------- is a biological plastic and non-fibrous material. It occurs only in mature cell walls and is made of an insoluble hydrophobic aromatic polymer of phenolic alcohols.

TLS Online TPP Program

#Question id: 27970

#Unit 1. Molecules and their Interaction Relevant to Biology

For the redox pair NAD/NADH, E is -0.320 V, and for the pair O2/H2O, E is 0.816 V.  The DE for this reaction is therefore 1.14 V, and the standard free-energy change △G’⁰ is

TLS Online TPP Program

#Question id: 11575

#Unit 7. System Physiology – Animal

Fight-or-flight reactions include activation of the ________.

TLS Online TPP Program

#Question id: 4594

#Unit 11. Evolution and Behavior

Which one of the following observations did Darwin first make during his discovery of evolution?

TLS Online TPP Program

#Question id: 2162

#Unit 2. Cellular Organization

Uniport transport