Fran Drescher -- Good Genes or Good Docs?

Fran Drescher's good looks are nothing to kid about!

Here's a 35-year-old version of the comedic 'Nanny' star back in 1993 (left) and 24 years later ... the fashionable actress -- who celebrated her 60th birthday this weekend -- at a party in Los Angeles earlier this year (right).

It's no wonder she was known as Fran Fine!

The question is ...