Category Class 12

Difference in between Sperm and Semen

Difference in between Sperm and Semen Sperm and SemenPondering over sperm and semen and wondering how they differ? Well, semen and sperm are like squares and rectangles. Sperm is a part of semen but semen isn’t a part of sperm. Sperm cells are male…

Difference in between Gametogenesis and Meiosis

Difference in between Gametogenesis and Meiosis Gametogenesis and MeiosisIs meiosis and gametogenesis same? Let us see. Meiosis is a cell division process wherein reduction division occurs causing chromosome number to be reduced to half the number. Gametogenesis is the process of production of gametes…

Common Misconceptions

Common Misconceptions Colostrum and BreastmilkColostrum is often referred to as ‘first milk’, and is produced by all mammals. It is thick and yellow in colour, typically available in the days immediately after birth. Colostrum is higher in both fat and protein…

Human Reproduction-Concept

Human Reproduction-Concept 1 Testes 1. Testes are the primary reproductive organs in the males. They are located in a pair in the scrotal sac outside the abdomen. They are endocrine in nature. 2. In the embryo stage the testis are…

Human Reproduction-Notes

Human Reproduction-Notes 1Human Male Reproductive SystemOverview on Human Male Reproductive System The male reproductive system consists of a pair of testes, accessory ducts, glands and the external genitalia. Testes or TesticlesTestes are located outside the abdominal cavity within a pouch known as the scrotum. The role of the scrotum…

Human Reproduction-Diagrams

Human Reproduction-Diagrams 1Male Reproductive System 2Female Reproductive System 3Section of a Seminiferous Tubule 4Section of a Mammary Gland 5Structure of a Human Sperm 6Structure of an Egg 7Gametogenesis: Spermatogenesis and Oogenesis 8Menstrual Cycle 9Fertilization 10Embryonic Development 11Human Foetus Inside the…

Sexual Reproduction In Flowering Plants-Notes

Sexual Reproduction In Flowering Plants Morphology of Flower Flowers are the primary reproductive organs of the plants. They are attractive, colourful, often fragrant and nectar producing structures of flowering plants. The flower is commonly borne on short or long stalk called the pedicel.…

Sexual Reproduction In Flowering Plants-Concept

Sexual Reproduction In Flowering Plants-Concept Microsporangium 1. Structure in plant’s male reproductive organ which develops into pollen sac2. Each anther has fourmicrosporangia3. Development of pollen takes place here Structure of Microsporangium and Formation of Pollen 1. Surrounded by four wall layers –…

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