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TLS Online TPP Program

#Question id: 35134

Choose the correct statements regarding LexA ? 

#XL - Q Biochemistry
  1. At physiological pH, this autocleavage reaction of LexA requires the RecA protein.
  2. The LexA  is inactivated when it catalyzes its own cleavage at a specific Ala–Gly peptide bond.
  3. LexA  activate the transcription of all the SOS genes.
  4. Induction of the SOS response requires removal of LexA.
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TLS Online TPP Program

#Question id: 12342

#XL - T Zoology

Which of the following is a biological attribute that would most likely allow a species to become cosmopolitan in distribution?
TLS Online TPP Program

#Question id: 12344

#XL - T Zoology

The concept of punctuated equilibrium refers to
TLS Online TPP Program

#Question id: 12567

#XL - R Botany

Which of the following is true about the current research about forest fragmentation?
TLS Online TPP Program

#Question id: 12571

#XL - R Botany

Although extinction is a natural process, current extinctions are of concern to environmentalists because
TLS Online TPP Program

#Question id: 12573

#XL - R Botany

Which of the following conditions is the most likely indicator of a population in an extinction vortex? 
TLS Online TPP Program

#Question id: 12575

#XL - R Botany

All of the following are adaptations that permit the camel to be active by day in the desert EXCEPT