MovieChat Forums > The Patty Duke Show Discussion > Identical Cousins Can Happen

Identical Cousins Can Happen


If two sets of identical twins get married there is a chance that they can have offspring who is identical twins.

reply

When my brother's daughter & my daughter looked a lot like twins when they were little. They were often mistaken for identical twins when we were out together. They still look alike except they are now in their 20s and have very different styles.

< A peaceful place, so it looks from space. A close look reveals the human race. - Grateful Dead >

reply

[deleted]

I look just like my cousin

reply

A pair of twins in our town married about the same time and had children abut the same time. Several of their off spring, while not identical, look very much alike.

reply

Tsar Nicholas II of Russia and King George V of England were first cousins (their mothers were sisters) born three years apart, but the casual observer would swear they were identical twins. There are some good pictures on Google Images showing the marked resemblance. There was a lot of inbreeding and intermarrying among the various royal families over several centuries so the likelihood of this happening was pretty good. Only so many genes in a shallow pool.

I'd put a stupid saying here but I won't.

reply

It is biologically impossible for cousins to be identical.

Suppose that 2 male identical twins and 2 female identical twins marry. Then each set of parents will have identical genes. And the children of the 2 sets will be as genetically identical as siblings.

But siblings, except for rare cases of identical twins, have different genes from each other. it is impossible for 2 humans to have identical genes, unless one is cloned from the other with future science, or they are identical twins grown from a single fertilized egg which split into two very early in development.

Therefore anyone who cares enough about biological science will have to assume that The Patty Duke Show is fantasy or science fiction in which Patty and Cathy's mothers were both implanted with their identical offspring by magic or super advanced science.

Unless, of course, we assume that Patty and Cathy are not genetically IDENTICAL but are genetically SIMILAR ENOUGH in their genes determining appearance that they look almost identical. Just like Tsar Nicholas II and King/Emperor George V were not genetically identical but looked very similar and were hard to tell apart.

reply

I do believe the premise of the show was that Patty and Cathy were identical in APPEARANCE, and not genetics.
In fact, I'm not sure that genetic testing even existed when this show was made.

reply