Sexual reproduction depends on meiotic division, on forming the gametes (male-female), where the number of chromosomes is reduced to its half (n) and during fertilization, the male gamete fuses with the female gamete, therefore...
The sexual reproduction is a process by which the living organism produces the individuals with the traits differ from the parents, It occurs through two parental individuals, One is the male and the other...
The fetus development the fertilization occurs about two weeks after the first day of the last menstrual period when the sperm penetrates the egg, and within 24 hours after the fertilization, the egg begins...
