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TLS Online TPP Program

#Question id: 31096

The calcium transport cycle is completed when: 

#Unit 4. Cell Communication and Cell Signaling
  1. ER calcium enters the cytosol via an ATP-powered Ca+2 pump
  2. Cytosolic calcium enters the ER via an ATP-powered Ca+2 pump
  3. Cytosolic calcium enters the ER via Ca2+/Na+ antiporters
  4. ER calcium enters the cytosol via IP3 gated Ca+2 channels
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TLS Online TPP Program

#Question id: 17214

#Unit 7. System Physiology – Animal

What is the effect of alarm reaction on cardiac system?
TLS Online TPP Program

#Question id: 5673

#Unit 5. Developmental Biology

Species-specific sperm attraction has been documented in numerous species. In echinoderms, sperm are attracted toward eggs of their species by chemotaxis. Following statements are about chemoattraction-

A. In this process Sperm follows a gradient of a chemical secreted by the egg.

B. These oocytes control only the type of sperm they attract, but not the time at which they attract them.

C. Releasing the chemotactic factor only when the sea urchin egg has completed all of its meiotic divisions .

D. Releasing the chemotactic factor only when the sea urchin egg is in second metaphase of its meiotic division.

E. The mechanisms of chemotaxis differ among species and chemotactic molecules are different even in closely related species.

Which of the following statement are incorrect about this process?
TLS Online TPP Program

#Question id: 33484

#Unit 2. Cellular Organization

When a complete gene is found within the intron of a larger “host” gene called as
TLS Online TPP Program

#Question id: 7464

#General Aptitude

What time is shown by the mirror if the real time is 9 : 27 ?
TLS Online TPP Program

#Question id: 15520

#Unit 4. Cell Communication and Cell Signaling

Double-negative (DN) thymocytes that have successfully rearranged their TCRβ chains are valuable, and are identified and expanded via a process known as