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TLS Online TPP Program

#Question id: 8687

Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?

#XL - T Zoology
  1. to serve as an outgroup
  2. to see if the lily is a cryptic orchid species
  3. to see if the lily and the orchids show all the same shared derived characters
  4. to demonstrate likely homoplasies
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TLS Online TPP Program

#Question id: 1757

#XL - Q Biochemistry

What is the first event following the production of CH germline transcripts by immunoglobulin genes?
TLS Online TPP Program

#Question id: 12670

#XL - R Botany

 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: 3445

#XL - T Zoology

Which one of these concepts is not associated with sociobiology?
TLS Online TPP Program

#Question id: 4977

#XL - S Microbiology

There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to
TLS Online TPP Program

#Question id: 8933

#XL - S Microbiology

At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?