America Needs Fatima America Needs Fatima (ANF) is a TFP campaign to spread the Fatima message in the United States. The goal of America Needs Fatima is to win the heart and soul of America for the Immaculate Heart of Mary.
In human fertilization, two 1n haploid cellsâan ovum (female gamete) and a sperm cell (male gamete)âcombine to form a single 2n diploid cell called the zygote.NA is then replicated in the two separate pronuclei derived from the sperm and ovum, making the zygote's chromosome number temporarily 4n diploid. After approximately 30 hours, fusion of the pronuclei and subsequent mitotic division produce two 2n diploid daughter cells called blastomeres.
The gametophyte is the gamete-producing plant that produces male reproductive structures called antheridia, which produce sperm, and female reproductive structures called archegonia, which produce eggs. When a sperm cell fertilizes an egg inside the archegonium, a diploid zygote is formed.s the spore germinates, it develops into a thin, filamentous stage called a protonema. As the protonema grows, it develops into a mature gametophyte with root-like rhizoids that anchor the plant and an erect, stem-like structure with whorls of leaf-like photosynthetic tissues.