Which statement about the levels of genetic similarity of identical twins, same-sex fraternal twins, and other same-sex sibling pairs is true?
A) Same-sex fraternal twins and other same-sex sibling pairs have an equal level of genetic similarity, and they are both less genetically similar than identical twins.
B) Same-sex fraternal and identical twins have an equal level of genetic similarity, and they are both more genetically similar than other same-sex sibling pairs.
C) Same-sex fraternal twins are less genetically similar than identical twins and more genetically similar than other same-sex sibling pairs.
D) Identical twins, same-sex fraternal twins, and other same-sex sibling pairs all have equal levels of genetic similarity.
Correct Answer:
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