Male–female twins are the most common result, 50 percent of dizygotic twins and
... Monozygotic (MZ) or identical twins occur when a single egg is fertilized to ...
Identical (monozygotic) twins are always of the same sex because they form from
a single zygote that contains either male (XY) or female (XX) sex chromosomes ...
This video excerpt from their site says: Identical twins are. ... This can also
happen when the egg is fertilized with the male chromosome, making ...
Jan 29, 2009 ... My boss says that ameoba seperation causes identical twins, but that they can be
1 male and one female. I told him he's insane. Please help ...
Jul 11, 1999 ... There have been rare reports of male and female "identical twins" (see
references below). Truly, none of the twins is genetically identical as ...
If the aneuploidy were for the X chromosome, one twin might by male (XY or XYY
) while the other would be female (XO). Such male/female "identical twins" have ...
This seems absolutely impossible to me, but a woman said she saw a ... Fraternal
twins come from 2 different eggs fertilized with 2 different sperm ...
However. it is only the female that has any influence on the chances of having
fraternal twins as the male cannot make her release more than one ovum.
Dec 26, 2012 ... In theory you should get what would be about as close as possible to male/
female identical (monozygotic twins). However, I don't believe it ...
Identical (monozygotic) twins are nearly identical in terms of genetics, so are
almost always the same sex. The exceptions come from very unusual events