Science Homework Help

I don’t understand this Biology question and need help to study.

Watch: Jack Horner: Building a dinosaur from a chicken

https://www.ted.com/talks/jack_horner_building_a_dinosaur_from_a_chicken?utm_source=tedcomshare&utm_medium=referral&utm_campaign=tedspread

After watching the ted talk, when scientists discovered genetic similarities between a chicken and a dinosaur, Do you think this means there is also a similarity in the use of proteins, carbohydrates, and lipids of these two species.

Think of a method which helps scientists trace the evolutionary tree to turn a chicken into a dinosaur. How did they use a chicken’s DNA to create an almost T. rex. chicken (chicken with teeth and small arms)?