The seeds of angiosperms include an embryo surrounded by a genetically distinct tissue that mediates
transfer of nutrients between the parent sporophyte and the developing embryo. It is important that this
nutritive tissue contain two copies of the mother's genome and one copy of the father's genome. How is this
accomplished?
Multiple Choice
1.)haploid sperm cell fuses with a diploid egg cell.
2.)haploid pollen cell fuses with a diploid stigma cell.
3.)haploid sperm cell fuses with two haploid central cell nuclei.
4.)haploid pollen cell fuses with two haploid nuclei in the female gametophyte.
5.) haploid sperm cell fuses with a haploid egg cell.