Bioinformatics computing(C++ programming)

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C++

Consider the given below class code. Assume all header files are included.

//////////////////////////////////dna.h//////////////////////////////////////////////////////////////////////
class DNA
{
private:
string sequence;
public:
DNA();
void get_data();
void print();
};

//////////////////////////////////dna.cpp///////////////////////////////////////////////////////////////////////////
DNA::DNA( )
{
sequence = " ";
}
void DNA::get_data( )
{
cout<<"\n Entering DNA Sequence";
cout<<"\n Enter DNA Sequence Characters";
cin>>sequence;
}
void DNA::print( )
{
cout<<"\n\n PRINTING DNA SEQUENCE";
cout<<"\n DNA Sequence = "<<sequence;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Q1. Write code segments in IDE (netbeans or any other), paste its screenshot. There should
be no error in the code.
a. Overload the constructor with one string parameter in such a way that the DNA
sequence will not be NULL, it will be the sequence passed in the function. The function
will only create the DNA sequence if it is containing the bases A,T,C,G and gaps ‘-‘.
If it is not so, the function will print the error message that due to invalid bases, DNA
sequence cannot be created.
b. Overload the constructor with one string parameter in such a way that the DNA
sequence will not be NULL, it will be the sequence passed in the function as a
parameter. Also the function will print here the DNA Sequence entered.
c. Create a function that will return the count of nucleotides in the DNA sequence
entered.
d. Create a function that will convert the DNA sequence entered into upper case and
return the converted sequence.
e. Create a function that will return the RNA sequence created from the DNA sequence.
f. Create a function that will print the count of all the bases present in the DNA sequence
as well as the gaps.
g. Overload the print( ) function that will return the DNA Sequence rather than printing
it from the function.
h. Create a copy constructor.

What I have tried:

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