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TLS Online TPP Program

#Question id: 14883

Where is double negative selection is found during T-cell formation?

#XL - S Microbiology
  1. Movement from Bone marrow to thymus
  2. Movement from cortex to medulla 
  3. Movement from blood to medulla
  4. Movement from Primary to secondary lymphoid organs 
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TLS Online TPP Program

#Question id: 2321

#XL - T Zoology

The endosymbiont theory proposes that chloroplasts and mitochondria evolved from ________ and were engulfed by larger ________.
TLS Online TPP Program

#Question id: 8685

#XL - S Microbiology

Which of the following would be most useful in creating a phylogenetic tree of a taxon?
TLS Online TPP Program

#Question id: 27527

#XL - U Food Technology

The vitamins which are lost most readily during cooking are:
TLS Online TPP Program

#Question id: 11912

#XL - T Zoology

The success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present. If there was a small morphological difference in bill length between the resident and introduced species, then
TLS Online TPP Program

#Question id: 6961

#XL - T Zoology

Do HOX genes play a role in the development of C. elegans?