TLS Online TPP Program

#Question id: 3692


Which of the following statement is true regarding an enzyme DNA polymerase that catalyzes the elongation of complementary DNA strand?

#Unit 3. Fundamental Processes
  1. DNA polymerase III is a highly processive enzyme.

  2. DNA polymerase III possess 5'-3' polymerase activity required for elongation.

  3. DNA polymerase III possess 3'-5' exonuclease activity important for maintaining fidelity.

  4. All of the above

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TLS Online TPP Program

#Question id: 10907

#Unit 6. System Physiology – Plant

The mechanism of phloem translocation in angiosperms is best explained by the pressure-flow model, this model is an example of,

TLS Online TPP Program

#Question id: 10908

#Unit 6. System Physiology – Plant

The energy is necessary to move photosynthate from producing cells into the sieve elements. This movement of photosynthate is called

TLS Online TPP Program

#Question id: 10909

#Unit 6. System Physiology – Plant

The energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called

TLS Online TPP Program

#Question id: 10910

#Unit 6. System Physiology – Plant

In early research on phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks. What will be the INCORRECT explanation of active and passive mechanism?

TLS Online TPP Program

#Question id: 10911

#Unit 6. System Physiology – Plant

Researchers have investigated bidirectional transport by applying two different radiotracers to two source leaves, one above the other. Researcher wanted to see how bidirectional transport happens in sieve elements. Which one of the following is INCORRECT interpretation for bidirectional transport?

TLS Online TPP Program

#Question id: 10912

#Unit 6. System Physiology – Plant

Velocities for transport in the phloem are measured by using a technique which detect water flow;