Frick and Frack are 35-year-old identical twins separated in infancy and reared apart. Frick and Frack were recently reunited for the first time since birth. They have discovered that they have many things in common. Both twins have high IQs, both have high cholesterol, both are musicians, and both have outgoing personalities. The Frick and Frack twins are most likely:
A. dizygotic and dichorionic.
B. monozygotic and monochorionic.
C. dichorionic and nonconcordant.
D. dizygotic and highly concordant
Is the answer D?
No, the answer is not D. Dizygotic twins (also known as fraternal twins) are twins that develop from two separate eggs fertilized by two separate sperm. If the twins are dizygotic, they would have different genetic material and would not be genetically identical.
Based on the given information, we can deduce that the twins, Frick and Frack, are monozygotic twins (also known as identical twins). Monozygotic twins develop from a single fertilized egg that splits and forms two embryos. This is supported by the fact that they have many things in common, including high IQs, high cholesterol, being musicians, and having outgoing personalities.
Additionally, since they are identical twins, they would also be monochorionic, meaning that they shared the same placenta during their prenatal development.
Therefore, the correct answer is B. Monozygotic and monochorionic.
No.
http://www.thefreedictionary.com/dizygotic+twin
I read a little more into it and the answer is B. right?
Right.
Notice the prefixes -- bi- = two; mono- = one.