Cytosine
(C) - both;
Thymine (T) – DNA;
Uracil (U) - RNA.
Adenine
(A) - Both
Guanine
(G) - Both
These are the letters that we use to represent the nitrogenous base pairs that make up and thus define a nucleotide
Working a side job at nights or on the weekends
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.