Reproductive System
ICSE · Class 10 · Biology
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Modes of Reproduction and Human Reproductive Characters
- Asexual reproduction produces an offspring from a single organism without the formation of gametes.
- Sexual reproduction produces offspring by the formation and fusion of gametes.
- Gametes are specialised sex cells with a single set of chromosomes.
Male Reproductive System
- Testis is the male gonad and produces sperm.
- Each testis is approximately 4-5 cm long and about 12 g in weight in an adult male.
- Testes are present in the scrotal sac outside the abdomen.
Female Reproductive System
- Ovary is the female gonad and produces ova.
- Each ovary contains germinal epithelium, stroma, and follicles.
- Ovary is the site of oogenesis.
Fertilization, Embryonic Development, and Implantation
- Fertilization is the fusion of male and female gametes.
- During coitus, about 200-300 million sperms are deposited in the vagina.
- Sperms travel through the vagina, cervix, and uterus to the ampulla of the fallopian tube.
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