Family Genes

Jenni

So I’ve received different answers from different people - my mum and dad are half northern Irish and told me that I am also half because both of my Nan’s are full northern Irish and both my granddads are full English. My friends tell me that I’m quarter because my parents are both half where as a girl from my class said I would be half. Am I half or quarter? Please let me know I’m so confused - thanks (: