Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 31714
TLS Online TPP Program

#Question id: 4968

Which of these observations fails to support the endosymbiotic theory for the origin of eukaryotic cells?

#11. Evolution and Behavior

  1. the existence of structural and molecular differences between the plasma membranes of prokaryotes and the internal membranes of mitochondria and chloroplasts

  2. the existence of size differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts

  3. the existence of size differences between some prokaryotic cells and mitochondria

  4. the existence of rRNA sequence differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts

More Questions
TLS Online TPP Program

#Question id: 12653

#6. System Physiology – Plant

In tobacco, virus-induced gene silencing of the genes for which type of  kinases that are the members of the MAPK family, which are involved in the regulation of antiherbivore defenses?
TLS Online TPP Program

#Question id: 12657

#6. System Physiology – Plant

Experiments performed in the laboratory of Anne Osbourn at the John Innes Centre  utilized genetic approaches to demonstrate the role of saponins in defense against pathogens of oat. If Mutant oat lines then,
TLS Online TPP Program

#Question id: 12668

#6. System Physiology – Plant

What will be the effect of  water deficit condition in the plant cell?
TLS Online TPP Program

#Question id: 12669

#6. System Physiology – Plant

Water potential of plants under various growing conditions, and sensitivity of various physiological processes to water potential, during  water potential  0→ -1 MPa,  which of the following  physiological condition will not be seen ;
TLS Online TPP Program

#Question id: 12670

#6. System Physiology – Plant

 Changement  in the physiology or morphology of the individual is a nonpermanent  or  temporary and that can be reversed if the prevailing environmental conditions change is termed as 
TLS Online TPP Program

#Question id: 12671

#6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,