TLS Online TPP Program

#Question id: 843


_______ enzymes that catalyze isomerization reactions in folding pathways of some proteins.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Peptide prolyl cis-trans isomerase (PPI)

  2. Protein disulfide isomerase (PDI)

  3. A & B

  4. Only A

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TLS Online TPP Program

#Question id: 30089

#Unit 2. Cellular Organization

Which of the following options about the presence of transposable elements in humans is CORRECT?
1) LINES
II) SINES
III) Tc1
IV)Copia

TLS Online TPP Program

#Question id: 13097

#Unit 13. Methods in Biology

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.
 
If you take any bacterial gene sequence, before you begin doing any sequence analysis on it, there are six potential open reading frames. Why are there six?

TLS Online TPP Program

#Question id: 28702

#Unit 2. Cellular Organization

Oligosaccharyl transferase enzyme involves to transferred precursor oligosaccharide 

TLS Online TPP Program

#Question id: 4342

#Unit 3. Fundamental Processes

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following processes would likely occur when the cell is exposed to lactose?

TLS Online TPP Program

#Question id: 798

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the structural properties of DNA with the respective types of DNA in which they are found.

               COLUMN – I                                             COLUMN – II

A.        Pitch per turn of helix                                     1. 45.6 angstrom                   

                                                                                      2. 24.6 angstrom                               

 3. 33.2 angstrom

B.        Helix packing diameter                                 1. 23.7 angstrom            

                                                                                     2. 18.4 angstrom            

3. 25.5 angstrom

C.        Major-groove proportions                            1. Flattened out on helix surface

                                                                                      2. Extremely narrow but very deep

 3. Wide and of intermediate depth

D.        Minor-groove proportions                            1. Very broad but shallow

                                                                                     2. Extremely narrow but very deep

                                                                                    3. Narrow and of intermediate depth