In chloroplast, the site of coupled oxidation-reduction reactions is the

#Question id: 7529

#General Aptitude

#Question id: 7203

#Unit 5. Developmental Biology

Following statements are given regarding to the genes in Drosophila.

A. The anterior posterior compartment of each segment of drosophila is regulated by the expression of engrailed and wingless genes.

B. The gap genes are activated or repressed by the maternal effect genes, and are expressed in one or two broad domains along the anterior-posterior axis.

C. The transcription patterns of the anterior gap genes are initiated by the different concentrations of the Hunchback and Bicoid proteins.

D. The segment polarity genes encode proteins that are constituents of the delta-notch and Hedgehog signaling pathways.

E. After the segmental boundaries are set, the pair-rule and gap genes interact to regulate the homeotic selector genes, which specify the characteristic structures of each segment.

Which one of following option has all the correct statements?

#Question id: 60

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is true for the reaction?

3H₂ + N₂   2NH₃

#Question id: 30087

#Unit 2. Cellular Organization

Which of the following describes the key difference between simple transposition and replicative transposition?

#Question id: 721

#Unit 1. Molecules and their Interaction Relevant to Biology

Addition of urea leads to a two-state transition between α-helix and random coil conformation. It has been observed that [θ]222 of the polypeptide is -11000 deg cm2 dmol-1 in the presence of 6M urea. Initially it was observed that tile values of mean residue ellipticity at 220 nm ([θ]220) are -36000, and +4000 deg cm2 dmol-1 for α-helix, and random coil conformations of this polypeptide. The percentage of the polypeptide in α-helix conformation is: