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TLS Online TPP Program

#Question id: 7253

In drosophila, the segment polarity genes encode proteins that are constituents of the Wnt and Hedgehog signaling pathways. Which of the following is correct regarding to model for transcription of the segment polarity genes engrailed (en) and wingless (wg).

#Unit 5. Developmental Biology
  1. (a)-wingless  (b)-frizzled  (c)-armadillo  (d)-cubitus interruptus
  2. (a)-wingless  (b)-frizzled  (c)- cubitus interruptus  (d)-armadillo
  3. (a)- frizzled  (b)-wingless  (c)-armadillo  (d)-cubitus interruptus
  4. (a)- frizzled  (b)-wingless  (c)- cubitus interruptus  (d)-armadillo
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TLS Online TPP Program

#Question id: 814

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following uncommon amino acids are not found in the proteins?
TLS Online TPP Program

#Question id: 15526

#Unit 4. Cell Communication and Cell Signaling

If a thymocyte randomly generated a TCR with an affinity for MHC Class I, the TCR and CD8 would bind MHC Class I together, and generate a signal that specifically initiated a program that is 
a) silenced CD8 expression
b) silenced CD4 expression
c) induced expression of genes specific for helper T-cell lineage function
d) induced expression of genes specific for cytotoxic T-cell lineage function
TLS Online TPP Program

#Question id: 5230

#Unit 11. Evolution and Behavior

Homeotic genes
TLS Online TPP Program

#Question id: 5929

#General Aptitude

January 1 , 2007 was Monday . What day of the week lies on January 1 , 2008 ?
TLS Online TPP Program

#Question id: 3476

#Unit 11. Evolution and Behavior

The genetic relatedness (r) of an individual to brother is 0.50, according to Hamilton’s Rule, only if the fitness benefit is