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TLS Online TPP Program

#Question id: 8689

Which of the following statements best describes the rationale for applying the principle of maximum parsimony in constructing phylogenetic trees?

#XL - T Zoology
  1. Parsimony allows the researcher to "root" the tree.
  2. Similarity due to common ancestry should be more common than similarity due to convergent evolution.
  3. The molecular clock validates the principle of parsimony.
  4. The outgroup roots the tree, allowing the principle of parsimony to be applied.
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TLS Online TPP Program

#Question id: 16484

#XL - R Botany

One of the chief disadvantage of all plasma clot methods is that 
TLS Online TPP Program

#Question id: 1598

#XL - S Microbiology

Which of the following polypeptide is important for the expression of MHC I on the cell membrane?
TLS Online TPP Program

#Question id: 1389

#XL - S Microbiology

 Why has C. elegans proven to be a useful model for understanding apoptosis?
TLS Online TPP Program

#Question id: 5529

#XL - T Zoology

In humans, organogenesis in the embryo is basically accomplished by the end of which period of the pregnancy?
TLS Online TPP Program

#Question id: 4597

#XL - S Microbiology

Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should ________.