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TLS Online TPP Program

#Question id: 23659

Which is true about the frequency of occurrence of a desired clone from a genomic DNA library?

#Unit 13. Methods in Biology
  1. It depends on the abundance of the associated mRNA.
  2. It is directly proportional to the size of the genome.
  3. It is found as a ratio of the size of the insert to the size of the genome.
  4. It cannot be calculated. It is totally random.
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TLS Online TPP Program

#Question id: 23197

#Unit 13. Methods in Biology

In order to view images in TEM staining process has to be done. What kind of staining process are done.
1. Negative staining
2. Gram staining
3. Metal shadowing 
4. Immuno staining
Which of the following is true for TEM?
TLS Online TPP Program

#Question id: 34090

#Unit 3. Fundamental Processes

A. DnaA is in the active form only when bound to ATP.
B. All three13-bp repeats of origin must be opened for the initiation
C. 9-bp repeats are found outside of 245 bp origin 
D. DnaA has a weak intrinsic activity that converts the ATP to ADP, this is enhanced by a factor termed Had

Choose true and false
TLS Online TPP Program

#Question id: 3851

#Unit 3. Fundamental Processes

Transcription is initiated at sites called:
TLS Online TPP Program

#Question id: 18681

#Unit 13. Methods in Biology

Highly heterogeneous mixtures of proteins such as cell lysates or tissue extracts should be completely fractionated into individual proteins so as to obtain an overall picture of the protein composition and to enable location of individual proteins. The highest resolution is obtained 
TLS Online TPP Program

#Question id: 908

#Unit 1. Molecules and their Interaction Relevant to Biology

Molecular chaperones are a class of proteins that play a role