#Question id: 10342
#SCPH06 I Botany
Nitrate reductase is an important enzyme for nitrate assimilation. Given below some regulation of nitrate reductase activity through phosphorylation and dephosphorylation.
a) Light, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby activates the enzyme
b) In Dark, and Mg2+ stimulate a protein kinase that phosphorylates the same serine residues, which then interact with a 14-3-3 inhibitor protein, and thereby inactivate nitrate reductase
c) In Light, and Mg2+ stimulate a protein kinase that phosphorylates the serine residues, and thereby activate nitrate reductase
d) In Dark, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby inactivates the enzyme
Which of the following statements about regulation of nitrate reductase is correct?
#Question id: 1733
#SCPH05 I Biotechnology
The early increase in phospholipase Cγ1 activity following T-cell stimulation:
#Question id: 7702
#SCPH06 I Botany
If organisms A, B, and C belong to the same class but to different orders and if organisms C, D, and E belong to the same order but to different families, which of the following pairs of organisms would be expected to show the greatest degree of structural homology?
#Question id: 10716
#SCPH06 I Botany
The stability of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an CORRECT representation?
A. Community with more complex is more stable
B. Community with more number of alternate is more stable
C. Stability of community is inversely proportional to Connectance
D. Community with higher value of dominax index is more stable
#Question id: 4157
#SCPH28 | Zoology
At the ribosome, the codon and anticodon associate by __.