The diagram below shows a portion of DNA. The nucleobases adenine, thymine, cytosine, and guanine are matched together in
base pairs, and the order of these base pairs makes a genetic code.
Adenina
O
-Thymine
Cytosine
Guanine
Which describes the genetic code in a human?
Different genetic codes appear in each different type of cell.
Every human has the same exact genetic code.
Genetic codes change frequently in reaction to external factors.
A genetic code determines the physical traits of the body.