#Question id: 27414
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following is correctly describing the common structure of any sterol
#Question id: 5659
#Unit 5. Developmental Biology
Following are the statements related to mammalian chaemotaxis .
A. During chaemotaxis, the oocyte and its accompanying cumulus cells secrete molecules that attract only uncapacitated sperm toward the egg during the last stages of sperm migration.
B. These chaemotactic compound are hormone progesterone, which is made by the cumulus cells.
C. Progesterone has been shown to bind to a receptor that activates Ca2+ channels in the cell membrane of the sperm tail, leading to sperm hyperactivity and provides directional cue.
D. Cumulus cells also secrete a substance, CRISP1, that attracts sperm and hyperactivates them through CatSper channels similar as in sea urchins.
Which of the following statement is incorrect?
#Question id: 12740
#Unit 13. Methods in Biology
#Question id: 497
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements about the pentose phosphate pathway is incorrect?
#Question id: 4283
#Unit 3. Fundamental Processes
Proteins can enter which organelle(s) in their folded conformation?