The S&P Target Risk Index Series is comprised of four multi-asset class indices, each corresponding to a. particular risk level. Like the S&P Target Date Index Series, the asset class mix is determined once a year. through a process designed to reflect the overall investment opportunity of the represented markets. Each.
Best Answer: 1 zygote. 2. meiosis. 3. Meiosis is a process to produce gametes which have only half the chromosomes it will have until fertilization. when a male sperm(gamete) fertilizes the egg(female gamete) they produce a single cell called a zygote. Source(s): i think.
Double fertilization is complex mechanism of fertilization in flowering plants or angiosperms. Do uble fertilization is joining of a female gametophyte with two male gametes. One sperm nucleus fertilizes the egg cell and the other sperm combines with the two polar nuclei of the megagametophyte.ertilization is the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain.