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: 19015

#13. Methods in Biology

A combination of paper chromatography and electrophoresis involves______________

TLS Online TPP Program

#Question id: 19037

#13. Methods in Biology

In gas chromatography, the basis for separation of the components of the volatile material is the difference in________

TLS Online TPP Program

#Question id: 19044

#13. Methods in Biology

Which of the following techniques would be most useful to identify as well as quantify the presence of a known impurity in a drug substance? 

TLS Online TPP Program

#Question id: 19123

#12. Applied Biology

What is a Biosensor?
1. Device which employs a biological material to specifically interact with an analyte
2. Physical change measured and converted into an electrical signal 
3. Device which separate analytes 
Which of the following above statements are true for biosensor?

TLS Online TPP Program

#Question id: 19124

#12. Applied Biology

Biosensor is a sensing device. It senses biomolecules by sensing
1. The interaction produces some detectable physical change that is measured and converted into an electrical signal
2. The interaction produces some detectable physical change that is measured and converted into ions.
3. B. The interaction produces some detectable physical change that is measured and converted into enzyme
Which of the following above statements are true for biosensor?

TLS Online TPP Program

#Question id: 19129

#12. Applied Biology

Physical components in a biosensor include