Now a study by the National Society of Genetic Counselors says that having a child with your first cousin raises the risk of a significant birth defect from about 3-to-4 percent to about 4-to-7 percent.
According to the authors, that difference isn't big enough to justify genetic testing of cousin couples, much less bans on cousin marriage.
There is a separate page if you are wondering: can cousins date? The chart is only 6 KB, so I put it in between each paragraph.
If you click on View - Smallest, you should be able to see the chart and the paragraph below it without scrolling.
Once in a while I manage to be boring and confusing at the same time.
E01 through E08 borrow each others' sweaters and go on double dates. Everyone on the same level is the same degree of cousin and is in the same generation. A as the first generation, the B level is the second generation, C the third and so forth. Most of them have a picture of him in his Civil War uniform over their mantles. When you relate cousins who are in different generations, that's when. If you start on D3, go left to his first cousins D1 and D2, then drop down a level to E01, E02, E03 and E04, you've reached D3's first cousins, once removed. A, E01's great-great-grandfather, is four levels up from E01. A's cousins would be E01's cousins too, four times removed. Feel free to look around via the navigation bar below: Sections of my web site: Home | Christmas Letters | Genealogy | Homilies | Misc.
E01 through E08 are all third cousins to poor, lonesome E09. I have a monthly bet on whose site gets the most hits with a fellow at work. If it doesn't makes cousins really clear, please send me an E-Mail message with the link below. This is part of the Genealogy section of my web site, but most people who use it just want to settle a bet, not trace their family tree, so I don't have the Genealogy navigation bar on this page.
One who deters the socialization of a couple, perhaps when being invited out of pitty or through a feeling of duty.
This person may be eased into the situation by being allowed to stay in an envirnment he or she has become accustomed to (perhaps a kitchen, where the third wheel can bake cookies for the couple.) The third wheel may feel uncomfortable about watching the couple canoodle on his her her sofa, but none of this is taken into consideration.