The suitable female age for pregnancy ranges between 18 : 35 year, If the age decreases or exceeds that range, both the mother & embryo will be subjected to serious problems and the possibilities...
Fertilization is the fusion of the male gamete (sperm) with the female gamete (ovum) to form the zygote which divides to form the embryo, The man may be considered infertile, if the number of...
Pollination process provides the flower with the male gametes which are necessary for fertilization process of the ovule that forms the seeds, It stimulates the activity of auxins which are necessary for the development...
Alternation of generations It is a phenomenon of the succession of two or more generations in the life cycle of an organism, where there is a generation that reproduces sexually with one generation or...
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...
