Growth hormone secretion is regulated by negative feedback, three feedback loops including both long and short loops are involved,

a.  GHRH inhibits its own secretion from the hypothalamus via an ultrashort-loop feedback.

b. Somatomedins, which are by-products of the growth hormone action on target tissues, inhibit secretion of growth hormone by the anterior pituitary.

c. Both growth hormone and somatomedins stimulate the secretion of somatostatin by the hypothalamus.

d. SRIF is also secreted by the hypothalmus and acts on the somatotrophs to stimulate growth hormone secretion.

Which one of the following represents all correct statements?

TLS Online TPP Program

#Question id: 31345

#Unit 13. Methods in Biology

confocal laser scanning microscope (CLSM) is basically used to detect except

TLS Online TPP Program

#Question id: 31346

#Unit 13. Methods in Biology

Which one of the following techniques is used for detection of phosphorylated protein?

TLS Online TPP Program

#Question id: 31350

#Unit 13. Methods in Biology

Which techniques is being displayed in the given figure

TLS Online TPP Program

#Question id: 31355

#Unit 13. Methods in Biology

Which of the following is agglutination reaction based immuno-technique

TLS Online TPP Program

#Question id: 31356

#Unit 13. Methods in Biology

Which one of the following options represents a combination of terms that are matched INCORRECTLY? 

A. ddNTPs : Cleavage method of DNA sequencing

B. South Western blot: Physical interaction between DNA and proteins

C. 5’ to 3’ exonuclease activity: proof reading polymerase for PCR

D. Yeast two hybrid system: Interaction between proteins

TLS Online TPP Program

#Question id: 31359

#Unit 13. Methods in Biology

Which of the following microscopy uses photoswitchable fluorophores that can be switched between a "on" (fluorescent) and "off" (dark) state, allowing only a small subset of molecules to be illuminated at a time, enabling precise localization of each individual molecule.