TWINS

                      TWINS
Hello, today I am going to talk about the twins.
The twins are babies that born in the same delivery.

Always are very similar, but not the same.
How there are created?
When a fertiled egg splits into two separate babies, usally within the first twuelve days of mom's pregnancy. After twuelve days, the egg may not Split entirely and result in cojoined twins.
In my opinion is so difficult when this process happens. Do you imagine?
                                                                  
        Are the twins identical?
No, there not. Sometimes one of the twins is good at maths and bad at sapainsh language and the other is good at spainsh language and bad at maths, or one is good at drawing and the other is horrible. This happens because if you put together the brains of the twins can be a Smart brain. This is the reason of one do a thing good an the other bad and the other twin the opposite.
 
 
                                                      
                                                        OPPOSITE SEX IDENTICAL TWINS                      
TWINS


 
                                                    BOY                           GIRL

Identical Twins have almost always the same sex. There have been 3/5 documented cases of opposite sex identicaltwins. This happens in a set of identical boys, when one twin "drops" or "looses" a Y chromosome, resulting in a single chromosome, or an XO chromosome. Whithout a Y chromosome, the twin becomes a girl with a single chromosome, and will have Turner's Syndrome. Turner's Syndrome itself is not that a uncommon, ocurring in about 1 of 2500 live female births.