The statement compares the process of oogenesis and spermatogenesis. Which one is not true?
Production of ovum ceases at certain age, but sperm production continues even in old men.

The statement compares the process of oogenesis and spermatogenesis. Which one is not true? Polar bodies are formed in oogenesis.

The statement compares the process of oogenesis and spermatogenesis. Which one is not true? Meiotic arrest occurs both in Oogenesis and spermatogenesis.

The statement compares the process of oogenesis and spermatogenesis. Which one is not true? Oogenesis begins in the embryonic stages, but spermatogenesis starts at the onset of puberty.

Read the following statements and find out the incorrect statement(s). a. Humans are sexually reproducing and viviparous. b. Transfer of sperm in female genital tract (vagina) is called ejaculation. c. There are remarkable differences between the reproductive events in the male and in the female. d. Sperm formation continues even in old men, but formation of ovum ceases in women around the age of fifteen years. e. The male and female reproductive systems are located in the pelvic region.

Which of the following statements about Ellingham diagram are true? i) Ellingham diagram normally consists of plots of Delta_(f)G^(@) Vs T for formation of oxides of elements (ii) Each plot will be straight lines at all temperatures iii) There is a point in a curve below which DeltaG is -ve and above this point the oxide decompose its own iv) Ellingham diagram is restricted to metal oxides v) Ellingham diagram does not say about kinetics of the reduction process vi) Ellingham diagram presumes that the reactants and products are in equilibrium