Identical Twins

Is it possible to have identical twins and for them to have different blood types?
or to have different rh factors?

[squee27]

Identical twins always have the exact same genetic markers and the exact same blood type.

[momof51982]

I am haveing identical twins and it is very scary i am about 21 wks and a few days i lost my sone not even a year ago at 24wks he was alive for 24 days so this is all really scary anyone got any helping advice o ya there boys

[revzora]

are identical twins always the same sex?

[iamthehighway]

Identical twins are always the same gender, except in extremely rare cases where they have chromosomal defect.