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TLS Online TPP Program

#Question id: 8704

To apply the principle of maximum parsimony to construction of a phylogenetic tree, ________.

#9. Diversity of Life Forms
  1. choose the tree that assumes all evolutionary changes are equally probable
  2. choose the tree in which the branch points are based on as many shared derived characters as possible
  3. choose the tree that represents the fewest evolutionary changes, either in DNA sequences or morphology
  4. choose the tree with the fewest branch points
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TLS Online TPP Program

#Question id: 5700

#8. Inheritance Biology

During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that
TLS Online TPP Program

#Question id: 17083

#12. Applied Biology

Fusion of two cells produces a single cell with two nuclei one from each of the cells entering fusion; such a cell is called as 
TLS Online TPP Program

#Question id: 11554

#7. System Physiology – Animal

What happens in a cell when adenylyl cyclase is activated?
TLS Online TPP Program

#Question id: 19362

#13. Methods in Biology

What is the size of fragments that can be obtained by using a phagemid vector?
TLS Online TPP Program

#Question id: 1102

#4. Cell Communication and Cell Signaling

Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have increased levels of which of the following molecules?