Chiral compounds can be resolved using

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#Question id: 1868

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NOT helpful in the diagnosis of AIDS?

TLS Online TPP Program

#Question id: 4204

#Unit 3. Fundamental Processes

For each amino acid added to a polypeptide chain, __ phosphoanhydride bonds are cleaved.

TLS Online TPP Program

#Question id: 14686

#Unit 4. Cell Communication and Cell Signaling

This member of the AKAP family, designated mAKAP, anchors both PDE and the regulatory subunit  of PKA to the nuclear membrane, maintaining them in a negative feedback loop that provides close local control of the ATP level and PKA activity.

B- The basal level of PDE activity in the presence of hormone (resting state) keeps cAMP levels below those necessary for PKA activation. 

C- Activation of β-adrenergic receptors causes an increase in cAMP to a level in excess of that which can be degraded by PDE. 

D- The resulting binding of cAMP to the R subunits of PKA releases the active catalytic (C) subunits into the cytosol. Some C subunits enter the nucleus, where they phosphorylate and thus activate certain transcription factors . Other C subunits phosphorylate PDE, stimulating its catalytic activity.

E-  Active PDE hydrolyzes cAMP, thereby driving cAMP levels back to basal levels and causing re-formation of the inactive PKA C-R complex. Subsequent de-phosphorylation of PDE returns the complex to the resting state.

TLS Online TPP Program

#Question id: 24587

#Unit 3. Fundamental Processes

GC – TA transversion caused by the insertion of

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#Question id: 10401

#Unit 6. System Physiology – Plant

Chloroplast movements in some plants is maintained by fused molecules of phytochrome and phototropin is known as