NEET PG DENTAL EXAM

Detailed explanation-1: -When meiosis I is complete, the resultant oocyte is a secondary oocyte, which gives birth to a mature oocyte and a second polar body at completion of meiosis II. Following ovulation, secondary oocytes are blocked at metaphase II of meiosis II until fertilisation occurs.

Detailed explanation-2: -Explanation: The secondary oocyte completes meiosis II only when fertilized by a spermatozoan. After fertilization is initiated, the secondary oocyte begins its second meiotic division, resulting in the formation of a mature ovum and another polar body. At this point, the ovum is ready to fuse with the spermatozoan.

Detailed explanation-3: -After ovulation the oocyte is arrested in metaphase of meiosis II until fertilization.

Detailed explanation-4: -This results in the formation of the secondary oocyte (n). Secondary oocytes start undergoing second meiotic division but get arrested at metaphase II; until they meet the sperm in the fallopian tube. The secondary oocyte completes meiosis at the time of fertilization.