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Earn 100

The human zygote has pairs of chromosomes. (Answer in number)

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Important Questions on Human Reproduction

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Describe the process of fertilization in human with the help of four sequential diagrams.
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Fertilization in humans is practically feasible only if:
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In human females, meiosis-II is not completed until?
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During fertilization, zona pellucida of the ovum is dissolved by this enzyme released by the sperm
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During oogenesis in mammals, the second meiotic division occurs
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Meiotic division of the secondary oocyte is completed
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During fertilization, acrosome of sperm releases
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Receptors for sperm binding in mammals are present on:
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Statement I : Penetration of sperm into ovum is a chemical process
Statement II : Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum

The correct option among the following is

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Extrusion of second polar body from egg nucleus occurs
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Read the following statements and choose the correct option.

I. hCG prevents the regression of corpus luteum if fertilization takes place.

II. Falling levels of LH cause degeneration of corpus luteum in a regular menstrual cycle.

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The function of cortical granules in the cortex of the ovum is the
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The minimum number of meiotic divisions required to form fraternal twins are
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During the process of fertilization, the sequence of layers crossed by sperm are:

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In macro and telolecithal eggs site of amphimixis lies in the
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What happens during fertilization in human after many sperms reach close to the ovum?

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Which one is correct with regards to fertilization?