TLS Online TPP Program

#Question id: 23864


Which of the following problems with animal cloning might result in premature death of the clones?

#Unit 13. Methods in Biology
  1. use of pluripotent instead of totipotent stem cells
  2. use of nuclear DNA as well as mtDNA
  3. abnormal regulation due to variant methylation
  4. the indefinite replication of totipotent stem cells
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TLS Online TPP Program

#Question id: 2728

#Unit 2. Cellular Organization

Which of the following does not describe retrotransposons?

TLS Online TPP Program

#Question id: 2571

#Unit 2. Cellular Organization

While examining a rock surface, you have discovered an interesting new organism. Which of the following criteria will allow you to classify the organism as belonging to Bacteria but not Archaea or Eukarya?

TLS Online TPP Program

#Question id: 599

#Unit 1. Molecules and their Interaction Relevant to Biology

In a certain enzyme-catalyzed reaction the following steps occur:

1. A phosphate group on substrate A is transferred to a side chain of an active site residue of the enzyme.

2. The dephosphorylated form of substrate A dissociates from the enzyme.

3. Substrate B enters the active site and is phosphorylated with simultaneous regeneration of the enzyme in its original form.

What kind of kinetic mechanism is described?

TLS Online TPP Program

#Question id: 27082

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect statement regarding β -turns

TLS Online TPP Program

#Question id: 12997

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the given reason is correct to minimize the repulsion in an α-helix
a) positively charged amino acids are often found near the amino terminus of the helical segment
b) negatively charged amino acids are often found near the amino terminus of the helical segment
c) positively charged amino acids are often found near the C-terminus of the helical segment.
d) negatively charged amino acids are often found near the C-terminus of the helical segment.