Question

Place in order each pair from least to most biologically similar.

- adopted siblings
- fraternal twins
- identical twins

Answer 1

Adopted siblings, fraternal twins, and identical twins can be placed in order from least to most biologically similar.

Step-by-step explanation:

In terms of biological similarity, the order from least to most similar would be:

1. Adopted siblings
2. Fraternal twins
3. Identical twins

Adopted siblings share no genetic material, while fraternal twins share about 50% of their genetic material. However, identical twins are genetically identical because they come from the same fertilized egg. They share 100% of their genetic material, making them the most biologically similar.