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TLS Online TPP Program

#Question id: 27943

Which of the following reaction is catalyzes by enolase during Glycolysis

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Alcohol to ether conversion 
  2. Aldehyde to ketone conversion
  3. Alcohol to alkene conversion
  4. ketone to Aldehyde conversion
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TLS Online TPP Program

#Question id: 28441

#Unit 5. Developmental Biology

Which of the following mechanism is involve to the primitive streak formation_____
a) epithelial-to-mesenchymal transformation
b) cellular dance mechanism
c) Wnt planar cell polarity pathway 
d) RTK pathway
e )Nonplanar cell polarity pathway
TLS Online TPP Program

#Question id: 34179

#Unit 3. Fundamental Processes

A. At the replication fork, the dsDNA in front of the fork becomes increasingly positively supercoiled.
B. At the replication fork, the dsDNA in front of the fork becomes increasingly negatively supercoiled.
C. The “swivelase” that prevents the accumulation of positive supercoils ahead of the replication fork.
D. The “swivelase” that prevents the accumulation of negative supercoils ahead of the replication fork.

Which of the following combination of statements is correct
TLS Online TPP Program

#Question id: 4267

#Unit 3. Fundamental Processes

The 3D structure of the complete Escherichia coli ribosome with bound mRNA and tRNAs revealed that the very amino terminus of one protein (L27) does reach into the active site. This finding suggested a role for this protein in catalysis. To test this possibility, the nine amino acids at the L27 amino terminus that were in close proximity to the active site were eliminated by mutation. The following possible outcomes were found to be correct as

A. The resulting cells produced ribosomes with reduced but detectable peptidyl transferase activity

B. Region of the L27 protein contributes to peptidyl transferase activity

C. The mutant ribosomes, didn’t synthesised wildtype levels of cells

D. Vast majority of this increase in peptide bond formation is retained, even without the presence of L27 in the active site

E. The most likely role for L27 is to correctly position one or more of the RNA components of the active site
TLS Online TPP Program

#Question id: 15261

#Unit 2. Cellular Organization

Lactose and neutral red dye are used in MacConkey agar. This type of media is an example of 
TLS Online TPP Program

#Question id: 28811

#Unit 2. Cellular Organization

Which of the following myosin move towards the (–) ve end of an actin filament?