Which one of the following lipases is activated on the plasma membrane, during octadecanoid pathway leads to the activation of jasmonic acid?

#Question id: 3263

#Unit 11. Evolution and Behavior

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of

#Question id: 5675

#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: 4512

#Unit 3. Fundamental Processes

Some pre-mRNAs can be spliced in more than one way. Thus, mRNAs containing different selections of exons can be generated from a given pre-mRNA, called

#Question id: 12431

#Unit 10. Ecological Principles

#Question id: 19082

#Unit 4. Cell Communication and Cell Signaling