Twin DNA Testing

Twin DNA testing can accurately determine whether twins are identical or fraternal. Twins are classified on the basis of similarity between their DNAs; monozygotic twins or identical twins, have identical genetic blue prints, whilst dizygotic twins or non-identical twins do not. Fraternal twins are sometimes referred to as false twins since they are not technically twins since their genetic profiles are not identical. Dizygotic twins develop one next to the other in the womb and when it comes to their DNA, they are no different to normal siblings or half siblings. Twins of this type may even have different fathers if the woman had intercourse with two different men is a small time frame; in this case, two independent eggs are fertilised in that short time frame by sperm cells from different men. Identical Twins are considerably rare and form approximately 2% of the world’s total population. To find out more about Twin DNA testing or Twin Zygosity testing visit the suggested pages.