TLS Online TPP Program

#Question id: 28785


A sponges toxin Latrunculin involve__

#Unit 2. Cellular Organization
  1. to lowering the Cc
  2.  to binds and inhibit depolymerization of actin filament
  3. to binds and sequesters F-actin 
  4. to binds and sequesters G-actin 
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TLS Online TPP Program

#Question id: 27674

#Unit 1. Molecules and their Interaction Relevant to Biology

Zinc Finger Motif is characterised by

TLS Online TPP Program

#Question id: 10499

#Unit 6. System Physiology – Plant

Stomata from intact, attached leaves of Arabidopsis illuminated with blue, red, and green light in a growth chamber, increases and decreases their aperture in response to light.

 

Find the CORRECT statements from the above graph.

i) Stomatal aperture increases when the green light is turned off, and close when the green light is turned on again

ii) Stomata from the phototropin-less double mutant phot1/phot2 respond to blue light and open further when green light is turned off

iii) stomata from the zeaxanthin less mutant npq1 do not respond to blue light and least effect to opening of the stomata further when green light is turned off

iv) the npq1 mutant and phot1/phot2 double mutant response indicate that the green reversal of the blue-light response requires zeaxanthin but also phototropin

TLS Online TPP Program

#Question id: 841

#Unit 1. Molecules and their Interaction Relevant to Biology

In E.coli chapronin activity contains  two subunit GroEL and GroES, binding the protein with the GroEL changes the conformations and hydrolysis of ATP would be  takes place. In which conformation of GroEL bound protein to get converted into folded?

TLS Online TPP Program

#Question id: 4374

#Unit 3. Fundamental Processes

When a repressor protein is __ (bound, unbound) to a promoter region transcription is allowed; when an activator protein is __ (bound, unbound) to a promoter transcription is ,stimulated.

TLS Online TPP Program

#Question id: 13187

#Unit 10. Ecological Principles

The following figure is a model of seedling establishment as a function of distance from a parent tree. Initial seed density measures the number of seeds falling to the ground. Seed survivorship measures the proportion of seeds that survive to the adult stage at each distance


Which of the following factors is most likely to generate the seed density curve shown?