TLS Online TPP Program

#Question id: 12392


 According to the acid growth hypothesis, the source of the hydrogen ions is the plasma membrane H+-ATPase, whose activity is thought to increase in response to

#Unit 6. System Physiology – Plant
  1. Gibberellin
  2. Cytokinin
  3. Auxin
  4. Abscisic acid
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TLS Online TPP Program

#Question id: 15296

#Unit 5. Developmental Biology

Match the following

Column IColumn IIColumn III
A. Cytochalasin Di. A sponge toxin

a. Enhances nucleation by binding and stabilizing actin dimers and

thereby lowering the critical concentration.

B. Latrunculinii. A fungal alkaloidb. Binds and sequesters G-actin, inhibiting it from adding to a filament end.
C. Jasplakinolideiii. The “angel of death” mushroom

c. Binds at the interface between subunits in F-actin, locking adjacent

subunits together and preventing actin filaments from depolymerizing.

D. Phalloidin

d. Depolymerizes actin filaments by binding to the (+) end of F-actin,

where it blocksfurther addition of subunits.

Which one of the following is correct combination?

TLS Online TPP Program

#Question id: 15297

#Unit 5. Developmental Biology

 Which of the following statement is correct regarding mammalian cleavage?

TLS Online TPP Program

#Question id: 15298

#Unit 5. Developmental Biology

In mammalian development Prior to blastocyst formation, each embryonic blastomere expresses ________ transcription factors and appears to be capable of becoming either ICM or trophoblast.

TLS Online TPP Program

#Question id: 15299

#Unit 5. Developmental Biology

Name of transcription factor which are responsible for  pluripotency of  stem cells or stimulate the production of OCT4 and NANOG ;

TLS Online TPP Program

#Question id: 15300

#Unit 5. Developmental Biology

In hippo signaling pathway, the activation of the Cdx2 gene in the trophoblast cells appears to be regulated by the Yap protein, which in turn is a cofactor for the transcription factor Tead4. Tead4 is found in the ________blastocyst

TLS Online TPP Program

#Question id: 15301

#Unit 5. Developmental Biology

Initially, the morula does not have an internal cavity. However, during a process, cavitation, the trophoblast cells secrete fluid into the morula to create a blastocoel, these 
membranes of trophoblast cells contain_______?