- For question 1, the correct answer is C. The puppy’s DNA fingerprint must match half of its genetic material from the sire. Comparing the puppy’s bands to each possible sire, sire C shares the most matching bands, indicating he is the most likely father.
- For question 2, the correct answer is 4. The kitten’s DNA fingerprint should be a combination of the mother cat’s bands and one other set of bands from the father. Kitten 4 has bands that align perfectly with the mother cat’s bands plus an additional unique set, making it the most likely offspring.
- For question 3, dad 2 is the father. The baby’s DNA bands are a combination of the mother’s bands and dad 2’s bands. Dad 1 does not share the necessary bands with the baby to be the father.
- For question 4, suspect S2 is the murderer. The DNA found under the victim’s fingernails matches the DNA fingerprint of suspect S2 exactly, indicating they were the one who scratched the victim.
Parent Tip: Review the logic above to help your child master the concept of dna fingerprint worksheet.
