Twins are a unique resource for health-related research because of their shared genetic makeup-identical twins have the same genes, while fraternal, or non-identical twins, share about 50% of their genes.
(Twins; are; a unique resource for health-related research; because of their shared genetic makeup-identical twins have the same genes, while fraternal, or non-identical twins, share about 50% of their genes) (their shared genetic makeup-identical twins; have; the same genes)
Twins their shared genetic makeup-identical twins
are have
a unique resource for health-related research because of their shared genetic makeup-identical twins have the same genes, while fraternal, or non-identical twins, share about 50% of their genes
the same genes