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TLS Online TPP Program

#Question id: 3828

Why does E. coli need both DNA polymerase III and DNA polymerase I?

#Unit 3. Fundamental Processes

  1. DNA polymerase III lacks the 5ʹ → 3ʹ exonuclease activity needed to remove RNA primers.

  2. Each polymerase is specific for only one strand of DNA. DNA polymerase III acts nly on the leading strand, and DNA polymerase I acts only on the lagging strand.

  3. DNA polymerase I is needed to join the Okazaki fragments.

  4. The DNA replication is bidirectional; one polymerase is used for each direction.

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TLS Online TPP Program

#Question id: 5816

#Unit 8. Inheritance Biology

Which of the following forms of DNA repair does NOT require DNA polymerase?
TLS Online TPP Program

#Question id: 23117

#Unit 2. Cellular Organization

Choose the correct statement of the following  
a. The nucleosome consists of approximately equal masses of DNA and histones (including H1). 
b. The four core histones are present in equal amounts in the cell.
c. H1 is half as abundant as the other histones, which is consistent with the finding that only one molecule of H1 can associate with a nucleosome.
d. One turn around the nucleosome takes 80 bp of DNA
TLS Online TPP Program

#Question id: 6574

#General Aptitude

Which term comes next in the sequence : Z , X, S, I, R, R, ?, ?
TLS Online TPP Program

#Question id: 3429

#Unit 11. Evolution and Behavior

Which of the following is a behavioral pattern that results from a proximate cause?
TLS Online TPP Program

#Question id: 11849

#Unit 6. System Physiology – Plant

According to chemiosmotic model for polar auxin transport, auxin _____A_______is driven by the______B________ across the plasma membrane, while auxin ___C_____is driven by the_________D_________