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Questions and Answers
What is the term for the process of releasing ovum from a mature follicle?
What is the term for the process of releasing ovum from a mature follicle?
Which hormone induces ovulation in females?
Which hormone induces ovulation in females?
Where does fertilisation take place in humans?
Where does fertilisation take place in humans?
What structure forms a vascular connection between the foetus and the uterus?
What structure forms a vascular connection between the foetus and the uterus?
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Which process leads to the formation of spermatozoa in males?
Which process leads to the formation of spermatozoa in males?
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Which method of reproduction is primarily followed by humans?
Which method of reproduction is primarily followed by humans?
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What is the correct classification of humans in terms of reproduction?
What is the correct classification of humans in terms of reproduction?
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In the context of human reproduction, what does the term 'fertilisation' refer to?
In the context of human reproduction, what does the term 'fertilisation' refer to?
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Which outcome results from asexual reproduction in humans?
Which outcome results from asexual reproduction in humans?
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How does viviparous reproduction in humans differ from oviparous reproduction?
How does viviparous reproduction in humans differ from oviparous reproduction?
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Study Notes
Human Reproduction
- Humans reproduce sexually.
- Humans are viviparous.
Gametes and Fertilisation
- Male and female gametes are haploid.
- Zygote is diploid.
- Fertilisation is internal in humans.
- Fertilisation takes place in the ampulla of the oviduct.
- The fusion of male and female gametes is called fertilisation.
Ovulation and Hormones
- The process of release of ovum from a mature follicle is called ovulation.
- Ovulation is induced by a hormone called luteinising hormone (LH).
Zygote and Embryonic Development
- Zygote divides to form a blastocyst, which is implanted in the uterus.
- The structure which provides a vascular connection between the foetus and the uterus is called the placenta.
Male Reproductive System
- Diagram of the male reproductive system includes testes, epididymis, vas deferens, seminal vesicles, prostate gland, urethra, and penis.
Female Reproductive System
- Diagram of the female reproductive system includes ovaries, fallopian tubes, uterus, cervix, and vagina.
Testis and Ovary Functions
- Two major functions of the testis are to produce sperms and produce androgens.
- Two major functions of the ovary are to produce ovum and produce estrogen and progesterone.
Spermatogenesis
- Spermatogenesis is the process of sperm production from the immature germ cell in males.
- The process occurs in the seminiferous tubules located inside the testes.
- The process involves meiosis I and meiosis II, resulting in the formation of four haploid spermatids from a diploid spermatogonium.
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Description
Prepare for your Class 12 Biology board examinations with detailed answers to all the questions from Chapter 3 - Human Reproduction. Framed by subject-matter experts, these NCERT solutions are a valuable resource for students.
