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The sperm produces substances of enzymatic nature called sperm lysin. In mammals, it is called

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Important Questions on Human Reproduction

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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 8

Development of an egg without fertilization is called
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It is a process of embryo sac formation from cell of nucleus, without undergoing meiosis

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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 9
What is true in the process of fertilization
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 10
Fertilization of sperm and ova takes place in
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 11
The phenomenon of fertilization was first perceived by
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 12
In human females, meiosis-II is not complete until
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 13
The final event in the process of fertilization is
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 14
In oogenesis a diploid cell produce        ovum/ova
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 15
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?