Write a Python script to implement the following tasks:-

1. Based on the identified objects, write a class of each object including their object constructors and appropriate identified attributes and methods; and show the inheritance and encapsulation concepts.

2. There are two types of sequences that can be entered by the user, whether DNA or Protein sequence. Write a condition, if the user enters the DNA sequence, only relevant information to the DNA sequence will be printed out and vice versa.