Uracil is readily produced by the chemical degradation of cytosine so have thymine as the normal base makes detection and repair of appearing mutations more efficient
The examination or observation of one's own mental and emotional processes.
"quiet introspection can be extremely valuable"
Answer:
Explanation:
Two different elements have similar chemical properties when they have the same number of valence electrons in their outermost energy level. Elements in the same column of the Periodic Table have similar chemical properties.
Fossil record in this case