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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.

More Questions
TLS Online TPP Program

#Question id: 2409

#Unit 2. Cellular Organization

How do cells at the completion of meiosis compare with cells that are in prophase of meiosis I? 
TLS Online TPP Program

#Question id: 2410

#Unit 2. Cellular Organization

The plasma membrane of eukaryotic cells is supported by: 
TLS Online TPP Program

#Question id: 2411

#Unit 2. Cellular Organization

Three major groups of filament systems comprising the cytoskeleton are all composed of polymers of assembled subunits, which vary in thickness when assembled.  Which is the correct order, from smallest to largest, of the filament systems?
TLS Online TPP Program

#Question id: 2412

#Unit 2. Cellular Organization

Actin-binding proteins that generate actin filament bundles:
TLS Online TPP Program

#Question id: 2413

#Unit 2. Cellular Organization

 Decoration of actin filaments with myosin S1 is commonly used to:
TLS Online TPP Program

#Question id: 2414

#Unit 2. Cellular Organization

Many actin cross-linking proteins contain: