Question
What happens during fertilisation in humans after many sperms reach close to the ovum?
Only two sperms nearest the ovum penetrate zona pellucida
Secretions of acrosome help one sperm enter the cytoplasm of the ovum through zona pellucida
All sperms except the one nearest to the ovum lose their tails
Cells of corona radiata trap all the sperms except one
During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes in the membrane that block the entry of additional sperms, ensuring only one sperm can fertilise the ovum. The secretions of the acrosome help the sperm enter into the cytoplasm of the ovum through the zona pellucida and the plasma membrane .
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Human Reproduction. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
More Human Reproduction Questions
Which one of the following is the most likely root cause of why menstruation is not taking place in a regularly cycling human female?
The figure given below depicts a diagrammatic sectional view of the female reproductive system of humans. Which one set of three parts out of A-F have been correctly identified?
Seminal plasma in humans is rich in:
Identify the human development stage and its correct site of occurrence in a normal pregnant woman:
Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of:
Capacitation occurs in:
Menstrual flow occurs due to the lack of:
Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
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