During coitus semen is deposited in the vagina. Give the path of sperm movement in female reproductive tract.

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.

During Oogenesis,in human female, a primary oocyte produces four haploid cells. Out of these four haploid cells, only one is used in reproduction. Then What is the fate of the haploid cells used in reproduction?

Diagnostic report of two couples having infertility problems are given below: The rnan has very low sperm count in semen. Suggest a suitable Assisted Reproductive Technologies (ART) for each problem in expanded form.