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TLS Online TPP Program

#Question id: 7266

After brief examination of the evolution of the tetrapod limb, from fish fins to human hands, has hopefully illuminated the importance of Hox gene regulation during limb development. Hox genes are critical for:

#Unit 5. Developmental Biology
  1. Specifying fates along each axis of the limb, and their expression is under the influence of signals emanating from the flank (proximal) and AER (distal), among others.
  2. Specifying fates along proximal-distal axis of the limb, and their expression is under the influence of signals emanating from the flank (proximal) but not from AER (distal).
  3. Specifying fates along each axis of the limb, by maintaining the expression of retinoic acid distally.
  4. Specifying fates along proximal-distal axis of the limb, and their expression is under the influence of signals emanating from the AER (proximal).
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TLS Online TPP Program

#Question id: 26979

#Unit 10. Ecological Principles

If the organism have survival of juveniles and adult is poor, selection pressure favors in these organisms
TLS Online TPP Program

#Question id: 14146

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

A. Cyanide 1. Inhibit cytochrome oxidase

B. Piericidin A 2. Prevent electron transfer from Fe-S center to ubiquinone

C. Antimycin A 3. Blocks electron transfer from cytochrome b to cytochrome c1

D. Valinomycin 4. K+ ionophore
TLS Online TPP Program

#Question id: 26868

#Unit 10. Ecological Principles

Primary production is constrained by the most limiting factor
 Choose the correct nutrient which adds on to the A, B and C and represent which one is the most limiting factor?
TLS Online TPP Program

#Question id: 26441

#Unit 3. Fundamental Processes

NER component and their functions are given, match them correctly
TLS Online TPP Program

#Question id: 2919

#Unit 2. Cellular Organization

Topoisomerases play the essential role of unlinking the DNA molecules to allow them to separate into the two daughter cells for cell division. Which of the following statements regarding the mechanism of topoisomerases is INCORRECT?