#Question id: 24602
#Unit 2. Cellular Organization
#Question id: 29420
#Unit 6. System Physiology – Plant
Prior to CO2 fixation, Activation of RUBISCO takes place that involves
(a) Two protons are released
(b) Binding of CO2 molecule on NH2 group of lysine
(c) Binding of Zn molecule on NH2 group of Alanine
(d) Binding of Mg2+ concentration upon illumination
#Question id: 5663
#Unit 5. Developmental Biology
Following statements are related to slow block to polyspermy in mammals.
A. A First slow block to polyspermy comes When the cortical granules fuse with the egg cell membrane, they release protein-digesting enzymes which is called as ovastacin that modify the zona pellucida proteins.
B. A second slow block to polyspermy comes from the so-called zinc spark, the release of billions of zinc ions that is induced by the entry of the first sperm, these released zinc ions are seen to bind to the egg cell membrane form a “zinc shield” that prevents further sperm entry.
C. A third slow block to polyspermy occurs at the level of the egg cell membrane and involves Juno.
Which of the following is incorrect?
#Question id: 10319
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 19804
#Unit 12. Applied Biology