Type A is dominant, Type O is recessive. In otherwords your parents could both carry the gene for O, but the A gene they carry overrides it. You just got the O gene from both of them and not the A. It works like this, imagine your mom's genes across the top, and your dad's down the side. They each give you only one.
Chrysopelea, more commonly known as the flying snake or gliding snake, is a genus that belongs to the family Colubridae. This flying snake species reaches up to three feet in length and is popular in the European pet trade. Their bodies are black, but covered in rich green scales. Clusters of red, orange, and yellow-coloured scales in the shape of flower petals line the dorsal area from the base of the neck to the tail.
Many people think that flying squirrels, flying possums and colugos (flying lemurs, which actually aren't even lemurs) can fly. But, the can't. They can only glide for limited distances. The only mammal that is actually capable of powered flight is the bat. All bats belong to the order Chiroptera. The word Chiroptera comes from the Greek words cheir meaning hand and pteron, which means wing because the structure of the open wing is very similar to an outspread human hand.