Each person has a unique DNA profile. To determine paternity, only a very limited amount of tissue is used to match the DNA profile of the potential father to that of the child. The genetic test performed to determine whether a tissue sample belongs to a specific suspect needs a more extended tissue sample.
1 is the answer because it’s talking about chemical
Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
