Features. 1  Half the connections of other EFI kits. 2  Returnless fuel system design - No need to run a second fuel line. 3  Control the ignition timing through the ECU.  Control two cooling fans for consistent engine 1  temperatures. Improved air/fuel distribution through annular ring injection design.
The X and Y chromosomes are called sex chromosomes. The gene for hemophilia is carried on the X chromosome. Hemophilia is inherited in an X-linked recessive manner. Females inherit two X chromosomes, one from their mother and one from their father (XX). Males inherit an X chromosome from their mother and a Y chromosome from their father (XY).
If they have a son, he has a 50% chance of having hemophilia. This is determined by which X chromosome he inherits. If he inherits the mother's normal X chromosome, the boy will not have hemophilia. If he inherits the mother's mutated X chromosome, he will.In the same way, the couple's daughter has a 50% chance of being a carrier. She could inherit the mother's normal X chromosome, and be normal herself.