Just one,

I'm a few,

No family too,

Who am I?

I don't know

 

I am a single mom

I am a married mom 

I am also a Scientist

That will find a cure

I am also a cop

Keeping everyone safe

Or a criminal 

Hiding from the world

 

There is only one of me

But I have a sister

Maybe two

Or three

Or five

 

Just one,

I'm a few,

No family too,

Who am I?

It's very simple

I am a clone