TLS Online TPP Program

#Question id: 15670


A researcher would like to map the location of galE and trpA genes in a new species of bacterium that appears to be closely related to E. coli. He decides to use cotransduction, and generates appropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?

#Unit 8. Inheritance Biology
  1. His new bacterial species does not have galE or trpA genes.
  2. His new bacterial species cannot survive galE or trpA mutation.
  3. These two genes are too far apart to be mapped by cotransduction
  4. These two genes are too close together to be mapped by cotransduction
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TLS Online TPP Program

#Question id: 24212

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement
a. Hexokinases IV remains sequesters in the nucleus in case of high F-6-P and high ATP
b. Hexokinases IV remains sequesters in the cytoplasm in case of high F-6-P and high ATP
c. Hexokinase requires Mg+2 for its activity, because the true substrate of the enzyme is not ATP4- but the MgATP2- complex.
d. Hexokinase requires Mg+2 for its activity, because the true substrate of the enzyme is MgATP4- but not the MgATP2- complex.

TLS Online TPP Program

#Question id: 31347

#Unit 1. Molecules and their Interaction Relevant to Biology

If Phi is fixed at -80ยบ. Clashes occur at all Psi angles except:


TLS Online TPP Program

#Question id: 9185

#Unit 9. Diversity of Life Forms

Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

TLS Online TPP Program

#Question id: 18990

#Unit 13. Methods in Biology

A list of reporter or marker genes used in gene transfers in animal cells with reporter gene and their source match them correctly

I - Chloramphenicol acetyltransferase

(CAT)

A - Herpes simplex virus (HSY)

II - Luciferase (lux)

B - Pacific jellyfish (Aequoria

victoria)

III - Green fluorescent protein

(GFP)

C - Bacteria, firefly

IV - Thymidine kinase (Tk)

D - E. coli transposon Tn9




TLS Online TPP Program

#Question id: 24544

#Unit 9. Diversity of Life Forms

In the tree below, the given character state character A and B represents;