TLS Online TPP Program

#Question id: 28974


Zona glomerulosa is controlled via__

#Unit 7. System Physiology – Animal
  1. Adrenal cortex
  2. angiotensinogen
  3. Renin-angiotensin-aldosterone system (RAAS) 
  4. Juxtaglomerular apparatus
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TLS Online TPP Program

#Question id: 28343

#Unit 5. Developmental Biology

select the correct gene of maternal effect gene of drosophila which equivalence to EGF family and EGF receptor.

TLS Online TPP Program

#Question id: 11165

#Unit 2. Cellular Organization

Membrane lipids in tissue samples obtained from different parts of a reindeer’s leg have different fatty acid compositions. Membrane lipids from tissue near the hooves contain a larger proportion of unsaturated fatty acids than those from tissue in the upper leg. What is the significance of this observation?

TLS Online TPP Program

#Question id: 19002

#Unit 13. Methods in Biology

Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent?

TLS Online TPP Program

#Question id: 10462

#Unit 6. System Physiology – Plant

During an experiments mutating the conserved cysteine in the LOV1 domain of phot1 does not affect phototropic responsiveness (the seedlings bend toward blue light) whereas the equivalent mutation in LOV2 abolishes the response. What will be the conclusion has been drawn from this experiments?

a)  LOV1 domain is secondarily responsible (primarily responsible is LOV2 domain) for kinase activation and LOV1 is not is coupled with the protein region Jα-helix that’s why it does not affect phototropic responsiveness

b) These studies have demonstrated that LOV2 domain is primarily responsible for kinase activation in response to blue light

c) This is due in part to the position of LOV2 within the phototropin molecule, where it is coupled to a protein region known as the Jα-helix

d) The function of LOV2 domain is thought to play a role in receptor dimerization by accomplishing the kinase activation in response to blue light

Which of the correct conclusion drawn from the above experiment?

TLS Online TPP Program

#Question id: 23117

#Unit 2. Cellular Organization

Choose the correct statement of the following  
a. The nucleosome consists of approximately equal masses of DNA and histones (including H1). 
b. The four core histones are present in equal amounts in the cell.
c. H1 is half as abundant as the other histones, which is consistent with the finding that only one molecule of H1 can associate with a nucleosome.
d. One turn around the nucleosome takes 80 bp of DNA