The radii of two circles are 10 cm and 24 cm. The radius of a circle whose area is the sum of the area of these two circles is

TLS Online TPP Program

#Question id: 1229

#Unit 4. Cell Communication and Cell Signaling

Which of the following events occur(s) during light activation of the rhodopsin receptor?

a. 11-cis-retinal is converted to all-trans-retinal

b. activation of the trimeric G protein, transducin

c. activation of cGMP phosphodiesterase

d. opening of the cGMP-gated ion channel

TLS Online TPP Program

#Question id: 858

#Unit 1. Molecules and their Interaction Relevant to Biology

Unfolded protein response (UPR)

TLS Online TPP Program

#Question id: 21968

#Unit 2. Cellular Organization

Which of the following is correct regarding the euchromatin 

a. Active genes/euchromatin are often found at the borders of chromosome territories

b. active genes from several chromosomes may cluster in inter-chromosomal territories that are enriched in transcription machinery

c. Active genes/euchromatin are often found at the periphery of nuclear wall

d. active genes from several chromosomes may cluster in inter-chromosomal territories do not have transcription machinery

TLS Online TPP Program

#Question id: 33245

#Unit 1. Molecules and their Interaction Relevant to Biology

   

Reaction catalyzed by proline racemase from Clostridium sticklandii is thought to occur via a planar transition state as shown above. The compound can affect reaction significantly as 

TLS Online TPP Program

#Question id: 31214

#Unit 4. Cell Communication and Cell Signaling

In which of the following mutants, all cells die by apoptosis?