A pairs with T (Thymine)
C Pairs with G (Guanine)
The Central Dogma states that first DNA is replicated into RNA and then the RNA leaves the nucleus and becomes Amino Acids. It is an inference because it cannot be observed, and it's only a prediction of what would happen, but it is the most likely inference
The testicles produce the sperm and the hormones
D oxygen there was no free oxygen on the earth
