Question

To determine the identity of their biological parents, adopted children sometimes request DNA tests. These tests involve comparing DNA samples from the child to DNA samples taken from the likely parents. Possible relationships may be determined from these tests because the

Answer 1

2. DNA of parents and the offspring is more similar than DNA of non-family members.

Step-by-step explanation:

Possible relationships may be determined from these tests because the adopted children have different DNA from their parents so the DNA test did not matched. It can only matched with the actual parents of the child. DNA test is a test which is done for finding the relationship of children to their parents or finding the actual parents of the child. This test is very efficient in finding the possible relationship because DNA of the individual did not change with the passage of time, it remain the same. This DNA test is also used in crime investigation.

Answer 2

2. DNA of parents and the offspring is more similar than DNA of non-family members

Step-by-step explanation:

Possible relationships may determine the identity of biological parents because DNA of parents and the offspring is more similar than DNA of non-family members.

During gametes formation, the paternal DNA is halved and the maternal DNA is also halved. Halving is done through meiosis.

The haploid gametes thus formed combine together to form the zygote during fertilization.

Hence, an offspring has the combination of both the paternal and maternal chromosome/DNA.

Consequently, the DNA of parents and offspring are more similar than DNA of non-family members.

The correct option is option 2.