Answer:
Zygote
Explanation:
When a haploid egg cell fuses with a haploid sperm cell, the nuclei of the cells fuse, and the homologous chromosomes pair up. The result of this fusion is a a diploid cell called a zygote. As an example, the human egg, which has 23 chromosomes, fuses with the sperm cell which also has 23 chromosomes. These chromosomes pair up and form a zygote that has 46 chromosomes.
