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Newsfeed Post in blog Genetic Heart Rhythm DiseasesTop 10 Frequently Asked Questions ANSWERED! Aug 27, 2020 | By Katrina Sorensen, Research Coordinator (@katrinasorensen)
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Replies to "My son asked me why he has Type O+ blood and his sister and I have..."
That is a great question! A child's blood type is dependent on both the mother's and the father's blood types. If your son takes a look at this chart created by the American Red Cross, he will see that since his father has type A blood, his mother's blood type has to be either A, B, or O for him to have type O blood and his sister to have type A blood. For more information about blood and blood types, you can check out the American Red Cross' website here: https://www.redcrossblood.org/donate-blood/blood-types.html.
Thank you for your question!