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What triggers the completion of meiosis of secondary oocyte?
- a)Entry of sperm into the egg cell
- b)Maturation of Graafian follicle
- c)Release of estrogen
- d)Coitus
Correct answer is option 'A'. Can you explain this answer?
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What triggers the completion of meiosis of secondary oocyte?a)Entry of...
Entry of sperm into the egg cell
The completion of meiosis of the secondary oocyte is triggered by the entry of sperm into the egg cell. When a sperm cell successfully penetrates the zona pellucida and fuses with the egg cell membrane, it triggers a series of events that lead to the completion of meiosis.
Process of fertilization
Fertilization is the process by which the sperm and egg combine to form a zygote. When a sperm cell enters the egg cell, it releases its genetic material into the egg. This triggers the secondary oocyte to complete the second meiotic division, resulting in the formation of a mature ovum and a second polar body.
Activation of the egg cell
The entry of sperm into the egg cell also triggers other changes in the egg, such as the release of calcium ions that prevent other sperm from entering. This process is known as egg activation and is crucial for the initiation of embryo development.
Significance of sperm entry
The entry of sperm into the egg cell is essential for the successful completion of meiosis in the secondary oocyte. Without this trigger, the oocyte remains arrested in metaphase II and cannot progress to form a mature ovum. Therefore, the entry of sperm is a critical step in the process of fertilization and embryo development.
The completion of meiosis of the secondary oocyte is triggered by the entry of sperm into the egg cell. When a sperm cell successfully penetrates the zona pellucida and fuses with the egg cell membrane, it triggers a series of events that lead to the completion of meiosis.
Process of fertilization
Fertilization is the process by which the sperm and egg combine to form a zygote. When a sperm cell enters the egg cell, it releases its genetic material into the egg. This triggers the secondary oocyte to complete the second meiotic division, resulting in the formation of a mature ovum and a second polar body.
Activation of the egg cell
The entry of sperm into the egg cell also triggers other changes in the egg, such as the release of calcium ions that prevent other sperm from entering. This process is known as egg activation and is crucial for the initiation of embryo development.
Significance of sperm entry
The entry of sperm into the egg cell is essential for the successful completion of meiosis in the secondary oocyte. Without this trigger, the oocyte remains arrested in metaphase II and cannot progress to form a mature ovum. Therefore, the entry of sperm is a critical step in the process of fertilization and embryo development.
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Community Answer
What triggers the completion of meiosis of secondary oocyte?a)Entry of...
- The secondary oocyte released from the ovary has finished first round of meiosis.
- The second round of meiosis occurs in ampulla after the egg encounters the sperm.
- This leads to formation of large ovum and a tiny second polar body.
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What triggers the completion of meiosis of secondary oocyte?a)Entry of sperm into the egg cellb)Maturation of Graafian folliclec)Release of estrogend)CoitusCorrect answer is option 'A'. Can you explain this answer?
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What triggers the completion of meiosis of secondary oocyte?a)Entry of sperm into the egg cellb)Maturation of Graafian folliclec)Release of estrogend)CoitusCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What triggers the completion of meiosis of secondary oocyte?a)Entry of sperm into the egg cellb)Maturation of Graafian folliclec)Release of estrogend)CoitusCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What triggers the completion of meiosis of secondary oocyte?a)Entry of sperm into the egg cellb)Maturation of Graafian folliclec)Release of estrogend)CoitusCorrect answer is option 'A'. Can you explain this answer?.
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