Scelta multipla
Which statement best summarizes the importance of meiosis to reproduction?
181
views
12. Meiosis
Introduction to Meiosis
Scelta multipla
During which stage of meiosis is a human ovulated egg arrested prior to fertilization?
A
Prophase I
B
Telophase I
C
Metaphase II
D
Anaphase II
Guida verificata passo dopo passo1
Understand that meiosis is the process by which gametes (sperm and eggs) are formed, involving two sequential divisions: meiosis I and meiosis II.
Recall that in human females, the egg (oocyte) begins meiosis during fetal development but pauses at Prophase I until puberty. This is the first arrest point.
After puberty, during each menstrual cycle, one oocyte resumes meiosis I and completes it, progressing to meiosis II. However, meiosis II is not completed immediately.
Recognize that the egg is arrested at Metaphase II during meiosis II. This is the second arrest point, and the egg remains in this stage until fertilization occurs.
Understand that fertilization triggers the completion of meiosis II, allowing the egg to proceed through Anaphase II and Telophase II, forming a mature ovum and a polar body.
Video correlati
Pratica correlata
