Answer:
Identical twins or monozygotic twins
Step-by-step explanation:
Identical twins are also called as monozygotic twins. Here, one sperm fertilizes an egg leading to formation of one zygote. The very first division in single zygote forms two identical cells that develop into two embryos. Since the resultant two embryo are derived from same zygote, they share 100% of their genes with each other.