To determine if individuals are members of the same family using DNA profiles, an offspring's DNA bands must be a combination of bands from its parents. This means every band in the offspring's profil

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To determine if individuals are members of the same family using DNA profiles, an offspring's DNA bands must be a combination of bands from its parents. This means every band in the offspring's profile must be present in at least one of the parents' profiles.

Let's compare the DNA profiles:

• Observe individuals X, Y, and Z.
• Every band present in individual Z's profile is also present in either individual X's profile or individual Y's profile (or both).
• For example, the thick band at the top of Z is present in both X and Y. The thin band below it in Z is present in X. The next thick band in Z is present in Y. This pattern continues throughout the