How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
b) Draw a sectional view of human ovary and label the difference follicular states, ovum and Corplus luteium.

Draw a labelled diagram of a sectional view of human ovary showing various stages of follicles growing in it.

Draw a diagram of sectional view of human ovary and label (i) Primary follicle, (ii) Tertiary follicle, (iii) Graafian follicle and (iv) Corpus luteum.

(i) How many primary follicles are left in each ovary in a human female at puberty ? (ii) Draw a sectional view of the ovary showing the different follicular stages of a human female in her preovulatory phase of menstrual cycle.

Draw a labelled diagram to show inter-relationship of four accessory ducts in a human male reproductive system. OR Draw a sectional view of the human ovary showing the different stages of developing follicles, corpus luteum and ovulation.

the stages of oogenesis in human females. (b) Draw a labelled diagram of a human ovum released after ovulation.

(a) Name the hormone that initiates spermatogenesis in humans. Describe the process of spermatogenesis in spermatogenesis in sequence mentioning the ploidy of the cells at each step. (b) Draw the diagram of a mature human sperm and label the parts that : (i) helps it reaching to the ovum . (ii) providing energy for it to reach the ovum. (iii) helping it to gain entry into the ovum.

Given figure is a diagrammatic section view of human ovary. Identify the parts labelled as A,B,C and D, and choose the correct option ?

A tank of water is viewed normally from above. (a) State how does the depth of the tank appear to change. (b) Draw a labelled ray diagram to explain your answer.

Explain the different stages of oogenesis in human starting from life till its completion. When and where in the body is oogenesis completed?

(a) Explain the events taking place at the time of fertilization of an ovum in a human female. (b) Trace the development of the zygote upto the implanation in the uterus. (c) Name and draw a labelled sectional view of the embryonic stage that gets implanted.