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Choose the correct option w.r.t human fertilization:
Semen discharge during ejaculation → sperm stay in female reproductive tract for 1-3 days → penetrates into secondary oocyte via acrosome→ capacitation occurs
Sperm rest in female reproductive tract for 1-3 days → via acrosome penetrates into secondary oocyte →Semen discharge during ejaculation→ capacitation occurs
Semen discharge during ejaculation → Sperm rest in female reproductive tract for 1-3 days → capacitation occurs → via acrosome penetrates into secondary oocyte
Semen discharge during ejaculation → via acrosome penetrates into secondary oocyte → capacitation occurs → Sperm rest in female reproductive tract for 1-3 days
Answers (1)
As we have already discussed in Fertilization -
- Male discharges the semen into the vagina of the female during copulation (coitus).
- The sperm can survive in the female’s reproductive tract for 1 to 3 days and it can fertilize the ovum in 12 to 24 hours following ovulation.
- The secretions of the female genital tract remove coating substances deposited on the surface of the sperm, particularly on the acrosome.
- This exposes the receptor sites on the acrosome and sperms become active to penetrate the secondary oocyte.
- This process of sperm activation is called capacitation.
Hence, the correct option is c
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