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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?

#SCPH28 | 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: 791

#SCPH05 I Biotechnology

Which one of this is not a normal base found in tRNA?
TLS Online TPP Program

#Question id: 1107

#SCPH06 I Botany

Viagra causes dilation of blood vessels and increased blood flow to the penis, facilitating erection. Viagra acts by inhibiting which of the following events?
TLS Online TPP Program

#Question id: 5526

#SCPH01 Biochemistry

The allantois
TLS Online TPP Program

#Question id: 12752

#SCPH01 Biochemistry

Which of the following cannot be used to remove protein contamination from nucleic acids?
TLS Online TPP Program

#Question id: 3690

#SCPH28 | Zoology

The DNA polymerase is a template-directed enzyme that synthesizes new complementary strand from a parent strand but it requires the existing short nucleotide sequence for its elongation. Which of the following enzyme is required for the synthesis of this primer?