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.
Paleontologist Dan Ksepka examines the fossilized skull of what may be the biggest flying bird ever found. Its telltale beak allowed Ksepka to identify the find as a previously unknown species of pelagornithid, an extinct group of giant seabirds known for bony, toothlike spikes that lined their upper and lower jaws.