Which Phrase Describes How Identical Twins Can Result

Multiple Choice

Which phrase describes how identical twins can result?

A) from the fusion of two paternal gametes with a single maternal gamete that then divides
B) from a lack of chromosomal separation during meiosis, resulting in gametes that are diploid and do not need to be fertilized
C) from the fusion of two sets of identical gametes
D) from a division of a zygote into two separate cells that develop into two separate embryos