8(iv)
State one difference between identical twins and fraternal twins.
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One difference between identical twins and fraternal twins is:
| Identical Twins | Fraternal Twins |
|---|---|
| They develop from a single fertilised egg which splits into two, so they are always of the same sex. | They develop from two separate eggs fertilised by two different sperms, so they may be of the same or of different sexes. |