Two separate zygotes implanting together produce twins that are:
AFraternal
BFractional
CFrictional
DFunctional
Answer & Solution
Correct answer: A. Fraternal
1. Two eggs were fertilised separately.
2. The siblings are no more alike than usual.
3. Those are fraternal twins.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 28, Development and Inheritance._
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