TLS Online TPP Program

#Question id: 18596


First toothed birds appear in which geological time periods?

#Unit 11. Evolution and Behavior
  1. Quaternary
  2. Cretaceous
  3. Devonian 
  4. Silurian
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TLS Online TPP Program

#Question id: 1237

#Unit 4. Cell Communication and Cell Signaling

Arrange the following events in the proper order in which they occur during transduction of the Notch/Delta signaling pathway:

a. cleavage of Notch by TACE                                  

b. binding of Delta to Notch

c. translocation of Notch segment to the nucleus      

d. interaction of Notch with transcription factors     

e. cleavage of Notch by Presenilin 1  

TLS Online TPP Program

#Question id: 3427

#Unit 11. Evolution and Behavior

Natural selection can alter the frequency of distribution allele and heritable trait in different following way

A- Accumulation of those mutation that increase fitness of population in changing environment

B- Check accumulation of mutation that lower the fitness of species in unchanging environment

c- occur when population is subjected to divergent selection

TLS Online TPP Program

#Question id: 12187

#Unit 2. Cellular Organization

How cells know whether sister kinetochores are properly attached to the mitotic spindle?

TLS Online TPP Program

#Question id: 23365

#General Aptitude

The function of mass communication of supplying information regarding the processes, issues, events and societal developments is known as:

TLS Online TPP Program

#Question id: 9158

#Unit 9. Diversity of Life Forms

Coral reefs occur on the southeast coast of the United States but not at similar latitudes on the southwest coast. Differences in which of the following most likely account for this?