Question-1 Part C

Mutation in orthodenticle gene in drosophila:

#Question id: 19470

#SCPH28 | Zoology

#Question id: 19755

#SCPH05 I Biotechnology

#Question id: 2260

#SCPH05 I Biotechnology

The term "nuclear envelope" is more correct than the term "nuclear membrane" because

#Question id: 2321

#SCPH28 | Zoology

The endosymbiont theory proposes that chloroplasts and mitochondria evolved from ________ and were engulfed by larger ________.

#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?