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TLS Online TPP Program

#Question id: 7141

Engrailed comes to be expressed in posterior compartments during Drosophila embryogenesis; what is the consequence of engrailed activation of hedgehog (Hh) signaling from the posterior compartment of the wing disc?

#Unit 5. Developmental Biology
  1. Hh activates decapentaplegic (Dpp) signaling at the compartment boundary; Dpp then acts as a morphogen to pattern the development of veins in the wing blade.
  2. Hh signaling from the posterior compartment specifies the adjacent compartment as an anterior compartment.
  3. Hh signaling in the posterior compartment acts as a morphogen to pattern the posterior portion of the wing.
  4. Hh signaling controls the identity of the Imaginal discs, in this case, specifying the disc as the wing disc.
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TLS Online TPP Program

#Question id: 21964

#Unit 2. Cellular Organization

Choose the incorrect statement 
a. S/MARs are a DNA sequence which is generally located between H1 and H3 binding sites. 
b.  S/MARs are a DNA sequence which is generally located between H3 and H4 binding sites
c. S/MARs is a DNA sequence which binds to base structure called matrix
d.  S/MARs is a DNA sequence which binds to base structure called scaffold
TLS Online TPP Program

#Question id: 1697

#Unit 4. Cell Communication and Cell Signaling

Cross-presentation of exogenous antigen to αβ T-cells does NOT require the involvement of:
TLS Online TPP Program

#Question id: 2895

#Unit 2. Cellular Organization

Match the following histone modifying enzymes with the respective functions they catalyze.

          COLUMN I                                            COLUMN II

1. NuRD, SIR2 complex                a. Histone Acetyltransferase Complexes

2. LSD1, JHMD3                             b. Histone Deacetylase Complexes

3. SUV39, DOT1                            c. Histone Demethylases

4. P300/CBP, PCAF                       d. Histone Methyltransferases
TLS Online TPP Program

#Question id: 4480

#Unit 3. Fundamental Processes

The reason for TBP’s unorthodox recognition mechanism is
TLS Online TPP Program

#Question id: 5385

#General Aptitude

The average temperature of the first three days of the week is 25®C and that of next three days is 27®C . If the average of the whole week is 26.5®C the temperature of the last day of the week is .