| Answer | Crossword Clue |
|---|---|
| dizygous | developed from two fertilized ova |
| dizygous | developed from two fertilized ova, as fraternal twins |
| fraternal | (of twins) Developed from separate ova and therefore genetically distinct and not necessarily of the same sex or more similar than other siblings |
| identical | (of twins) Developed from a single fertilized ovum, and therefore of the same sex and usually very similar in appearance |
| biovular | derived from two ova |
| binovular | relating to or derived from two different ova |
| dizygotic | (of twins) Derived from two separate ova, and so not identical |
