That is correct. Any animal that produces milk is a mammal. That is the key characteristic that defines Class Mammalia.
Reproductive isolation means they do not meet with each other or do not produce for tile offspring
The base sequence that would be produced through DNA replication would be UGCA. RNA contains three of these bases - (A),(C), and (G) but not (T). Uracil (U) is found in its place and complements adenine (A) instead. I hope my answer has come to your help. God bless and have a nice day ahead!
Epidermal tissue as this is what makes up the lining
