CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Explain "Meiosis 2 completed only at the time of sperm entry."

 
 


Solution

Primary oocytes are formed prenatally and remain suspended in prophase of meiosis I for years until the onset of puberty. An oocyte completes meiosis I as its follicle matures (during ovulation) resulting in a secondary oocyte and the FIRST polar body. After ovulation, each oocyte continues to metaphase of meiosis II. Meiosis II is completed only if fertilization occurs, resulting in a fertilized mature ovum and the second polar body.
So in short, the egg is stuck in metaphase II until fertilization.
 
 

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image