TLS Online TPP Program

#Question id: 5213


Which of the following is a major distinction between a transposon and a retrotransposon?

#Unit 11. Evolution and Behavior
  1. A transposon always leaves a copy of itself at its original position and a retrotransposon does not.

  2. A retrotransposon always uses the copy-paste mechanism, while a transposon uses cut and paste mechanism.

  3. A transposon is related to a virus and a retrotransposon is not.

  4. A transposon moves via a DNA intermediate and a retrotransposon via an RNA intermediate.

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TLS Online TPP Program

#Question id: 9591

#Unit 6. System Physiology – Plant

In light reaction, the funneling of excitation from the antenna system toward the reaction centre has been shown,

a.) The excited-state energy of pigments increases with distance from the reaction centre; that is, pigments closer to the reaction centre are lower in energy than those farther from the reaction centre

b.) The energy gradient ensures that excitation transfer toward the reaction centre is energetically favorable and that excitation transfer back out to the peripheral portions of the antenna is energetically unfavourable

c.) Some energy is lost as heat to the environment by this process, but under optimal conditions almost all the excitation energy absorbed in the antenna complexes can be delivered to the reaction centre

d.) The excited-state energy of  pigments decreases with distance from the reaction centre

Which of the following above combination is true?

TLS Online TPP Program

#Question id: 4727

#Unit 8. Inheritance Biology

if mendal had studied the seven trait using a plant with 12 chromosome instead of 14, in what manner would his interpretation have been different ?

TLS Online TPP Program

#Question id: 10361

#Unit 6. System Physiology – Plant

The carbon skeleton for amino acids derives from 3-phosphoglycerate generated during glycolysis is called anaplueratic reaction. Generated amino acids from 3-PGA is that,

TLS Online TPP Program

#Question id: 10450

#Unit 6. System Physiology – Plant

phototropins is primarily responsible by

TLS Online TPP Program

#Question id: 5743

#Unit 8. Inheritance Biology

Euploidy is