The answer is “Yes”. Just like two brown-eyed parents can have a blue eyed child because the rh negative gene just like the blue-eyed gene is recessive. Just like two blue-eyed parents cannot have a brown-eyed child, two REAL rh negative parents can never have an rh positive child.
There are however situations where a parent can be a partial-D or weak-D (search this blog for the terms if you need more information). In those cases, an individual can actually show up as rh negative in a test, but really be rh positive.
So do not draw conclusions too quickly when it comes to paternity, but rather bring up the possibility and demand a retest in case of doubt.
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I am Rh 0 Negative…I learned about my blood type when I gave birth to my first born son years ago…over the years, I was told by doctors and others how rare negative blood was…I am somewhat familiar with the dominant and recessive gene on any given blood typing….and in recent times, I have done my DNA testing on 23andme and on Ancestry and have connected with many DNA relatives from all over the US and the world…and found that many of them have Negative blood too…recently, I started asking my aunts, uncles, and cousins, and friends what was their blood type…over half of them have responded that their blood type is Negative too…many people in our area donate regularly to the American Red Cross blood bank that comes to our local Walmart and that is how they know their blood types…and then I found some others don’t have any clue as to what their blood type is…and for the ones that responded they are positive, they don’t know what their recessive gene is on their blood type…so that is another study to the equation considering that many of them might be recessive negative considering the locality of so many negative blood people in our area…I work in an ideal place to get to speak with many people each day, and I am doing my own “verbal studies” on this topic…and it has been interesting that Rh Negative blood is not are rare as I have always been told…
When they say rare, they mean in terms of the world population. Rh negative blood is only in 15% of worlds the population. But that’s still 120 million ppl, with only 8% of that being 0-. So out of 8 Billion ppl is rare. But that doesn’t mean you meeting someone within that subset will be rare.
What is recessive negative? I’m a 47 year old (today), ughh, male.
I AM B NEGATIVE
I’m super fascinated with my type after learning more about it, which I’ve started to incorporate into my life. The diets, seemingly like avoiding chicken and tomatoes, work.
A little background to offer anyone interested in aiding my intellect of this life changing subject that seems to be brought up every single day of my life:
My father is O+, of Mexican(Sicilian and Aragonian descent from his fathers side), my mother B- as myself, born in former Yugoslavia, in an autonomous region of Croatia that is Serb(Orthodox), influenced. Her father of Polish descent, supposedly Orthodox, but after researching on Internet, may very well be of Jewish descent, surname INDIC(INDIJIC/INDJIC) different variations considered Jewish. No one on my mothers side acknowledges this and only considers themselves Serbian Orthodox, with some Roman Catholics, because of marriage to Dalmatians.
My sister and her son, both also B -.
I’d like to get feedback, but to start; on, subject of recessive factors and what it means as to being true negative blood because of or in regards to: I’m confused. Any insight or opinions on the possibility of being part Jewish, and possible attributions due to negative blood type and factual geographical things that lead me to believe these possibilities are greatly appreciated.
I will be turning 60 on my next birthday and find myself looking at retirement soon after 40 plus years of paying social security. Okay so what does a 60 year old woman married (to a man six years younger) 27 years and mother of three adult children do for the next 20 years or at least until my husband can retire?
Figure out why you needed a very painful shot three different times.
I had my first RhoGam shot when I was just 17 years old and I remember every second of how painful that shot was but never really understood why I needed it just that I did. Two births and two shots later and I still didn’t really pay much attention and now my youngest just turned 23 recently.
Some of the research and or blogs are very disturbing and I am not sure I want to continue reading any of these sites but I want to know now that I have time to really figure this whole nonsense out. I am A-Rh-. That is all I can recall my physician actually saying to me about my blood type and the reason for the RhoGam shot. Seems redundant to say it A-Rh- doesn’t it. Or does the two negatives actually mean something? Most everything I’ve read is from 2012 or earlier and I found this site at least is current. Any thoughts on the A-Rh- question?
When they say rare, they mean in terms of the world population. Rh negative blood is only in 15% of worlds the population. But that’s still 120 million ppl, with only 8% of that being 0-. So out of 8 Billion ppl is rare. But that doesn’t mean you meeting someone within that subset will be rare.
Can two sisters have the same dad if l one sister is B positive and the other is rh negative
Absolutely!
Yes. My sister is positive and I am negative. Parents both carried a negative gene and I received it from both of them. It was not passed on to her. She may have received one positive and one negative or both positive…either way it made her positive.
Yes, as long as both parents have one negative in their blood gene. I am negative but both my parents were /are positive…father passed away. So, if they both have one and they pass that one negative gene along then you can be Rh negative. But they both have to pass it on and it’s rare.