(a) Draw a sectional view of a seminiferous tubule of human. Label sertoli cell, spermatagonia and leydig cell on it and write their functions.
(b) Explain the role of pituitary and sex hormones in the process of sapermatogenesis.

Draw a labelled sectional view of seminiferous tubule of a human male.

Draw a diagrammatic sectional view of a human seminiferous tubule, and label sertoli cells, primary spermatocyte, sperm-atogonium and spermatozoa init. b) Explain the hormonal regulation of the process of spermatogenesis in humans.

Draw a well labelled sectional view of seminiferous tubule and explain its structure.

Draw a diagrammatic sectional view of a seminiferous tubule (enlarged) in humans and label its parts.

(a) Draw the sectional view of a seminiferous tubule of human. Label its any six parts. (b) Name the pituitary hormones involved in the process of spermatogenesis State their functions.

(a) Draw a diagrammatic labelled sectional view of seminiferous tubule of a human. (b) Describe in sequence the process of spermatogenesis in human

(a) Draw a diagrammatic sectional view of a seminiferous tubule (enlarged) of human male and label (i) Spermatogenium, (ii) Sertoli cell, (iii) Primary spermatocyte. Write the function of each labelled part. (b) Differentiate between spermatogenesis and spermiogenesis.

Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions. (a) Acrosome (b) Nucleus (c) Middle piece

Draw a labelled diagram of a sectional view of humen seminiferous tubule. (b) Differentiate between gametogenesis in humen males and females on the basis of (i) time of initation of the process. (ii) Products formed at the end of the process.