The Naked Scientists
  • Login
  • Register
  • Podcasts
      • The Naked Scientists
      • eLife
      • Naked Genetics
      • Naked Astronomy
      • In short
      • Naked Neuroscience
      • Ask! The Naked Scientists
      • Question of the Week
      • Archive
      • Video
      • SUBSCRIBE to our Podcasts
  • Articles
      • Science News
      • Features
      • Interviews
      • Answers to Science Questions
  • Get Naked
      • Donate
      • Do an Experiment
      • Science Forum
      • Ask a Question
  • About
      • Meet the team
      • Our Sponsors
      • Site Map
      • Contact us

User menu

  • Login
  • Register
  • Home
  • Help
  • Search
  • Tags
  • Member Map
  • Recent Topics
  • Login
  • Register
  1. Naked Science Forum
  2. General Science
  3. General Science
  4. How are blood types inherited?
« previous next »
  • Print
Pages: [1]   Go Down

How are blood types inherited?

  • 6 Replies
  • 6455 Views
  • 1 Tags

0 Members and 1 Guest are viewing this topic.

Offline jengland14 (OP)

  • First timers
  • *
  • 2
  • Activity:
    0%
    • View Profile
How are blood types inherited?
« on: 25/03/2015 12:27:57 »
Hello, I just need some clear information about the genetic process of blood types. My husband and I are both blood type A+ but our daughter is blood type B+. I was curious as to how this happened. I have read countless information that says two As=A or O. I have been trying to gather information on both of our families, looking for recessive Bs but it takes time contacting everyone especially when my husband's family lives in another country. When I gave birth the most shocking part was hearing that she had B+ blood because I was so sure she'd have A+ so it would be so helpful for an educated explanation because so far everything I have read has lead me no where. Thank you so much!

« Last Edit: 27/03/2015 10:54:00 by evan_au »
Logged
 



Offline Colin2B

  • Global Moderator
  • Naked Science Forum King!
  • ********
  • 5269
  • Activity:
    9%
  • Thanked: 438 times
    • View Profile
Re: Need help understanding please.
« Reply #1 on: 27/03/2015 06:27:10 »
Quote from: jengland14 on 25/03/2015 12:27:57
Hello, I just need some clear information about the genetic process of blood types. My husband and I are both blood type A+ but our daughter is blood type B+. I was curious as to how this happened. I have read countless information that says two As=A or O. I have been trying to gather information on both of our families, looking for recessive Bs but it takes time contacting everyone especially when my husband's family lives in another country. When I gave birth the most shocking part was hearing that she had B+ blood because I was so sure she'd have A+ so it would be so helpful for an educated explanation because so far everything I have read has lead me no where. Thank you so much!

It might be worth posting a question here http://genetics.thetech.org/ask/ask71
Logged
and the misguided shall lead the gullible,
the feebleminded have inherited the earth.
 

Offline evan_au

  • Global Moderator
  • Naked Science Forum GOD!
  • ********
  • 9185
  • Activity:
    73%
  • Thanked: 915 times
    • View Profile
Re: Need help understanding please.
« Reply #2 on: 27/03/2015 10:52:40 »
Perhaps the most scientificaly interesting cause is chimerism, where organs of a single person can have different genetics. The blood is produced by the bone marrow, but the eggs or sperm could be genetically different, and carry a different blood type. There have been cases exactly as you describe.

Other events happen more than people like to admit, but:
  • Sometimes the mother is not the one she thinks she is (babies can be switched in hospital)
  • Sometimes the father is not the one he thinks he is. 

Some of these conditions can be distinguished with a modern paternity test (which also functions as a maternity test). Before you decide to have the test, make sure that you and your partner are willing to live with the findings, whatever they are. A talk to a genetic counselor may help clarify the range of possible outcomes.

Detecting chimerism in an individual is somewhat invasive, since it requires taking samples from various parts of a single body, in the hope that distinct genetic patterns can be recognized within a single individual.

In the case of chimerism arising from fusion of twins soon after fertilization, a baby girl may be as closely related to her uncles and aunts as she is to her mother (it can happen with boys too).
Logged
 

Offline jengland14 (OP)

  • First timers
  • *
  • 2
  • Activity:
    0%
    • View Profile
Re: How are blood types inherited?
« Reply #3 on: 27/03/2015 21:59:44 »
She is definitely our daughter. We were never separated at the hospital (she was born in my room and stayed in my room) and I have never cheated on my husband. Not to mention she looks too much like each of us in different ways to be someone else's child! This is why my question has driven me a little crazy. I do know that one of my husband's grandmothers was B+ and her son (my husband's father) is 0+. My husband's mother is A+ and one of his sibling's, his sister, is actually B+ too. Thank you for you information!
Logged
 

Offline syhprum

  • Naked Science Forum King!
  • ******
  • 5093
  • Activity:
    9%
  • Thanked: 64 times
    • View Profile
Re: How are blood types inherited?
« Reply #4 on: 27/03/2015 22:14:40 »
I haves serious doubts as to whether I am my "sons" father I am B- what could my "sons"  group be that would exclude me from being his father ?
« Last Edit: 27/03/2015 22:16:49 by syhprum »
Logged
syhprum
 



Offline evan_au

  • Global Moderator
  • Naked Science Forum GOD!
  • ********
  • 9185
  • Activity:
    73%
  • Thanked: 915 times
    • View Profile
Re: How are blood types inherited?
« Reply #5 on: 28/03/2015 00:52:08 »
Quote
I am B- what could my "sons"  group be?

Knowing that you are B- does not really constrain your son's blood group, because you could be BB (homozygous) or BO (heterozygous).
  • If you are BO, your child could be A, B,O or AB (ie anything)
  • The "-" means you are homozygous for the Rh factor (both copies of your genes are Rh-). Your child could be Rh+ or Rh- (ie anything).
Analysis of blood type really needs the mother's and child's blood type too, if you are going to have any confidence (and even then it may not be conclusive).

The table here gives the inheritance patterns: http://en.wikipedia.org/wiki/ABO_blood_group_system#Genetics
..But it may be easier to use a Blood Type Calculator, like the one here: http://www.endmemo.com/medical/bloodtype.php

Blood types are not conclusive about inheritance in all cases; a parental test provides far more information about the genetics.
« Last Edit: 28/03/2015 07:33:35 by evan_au »
Logged
 

Offline Rodin1880

  • Jr. Member
  • **
  • 17
  • Activity:
    0%
  • Naked Science Forum Newbie
    • View Profile
Re: How are blood types inherited?
« Reply #6 on: 12/01/2019 23:03:55 »
It's well documented that incest produces poor offspring... Diversity in breeding is what creates strong surviving individuals... This being the case, I believe that human beings are capable of great diversity in offspring, for the sake of survival of our species... Lust is a natural desire, causing males to have sex with many females and females having sex with many males, before we became "civilized"... While never proven and perhaps never even researched, I have to believe that human, if not other animal, female egg development changes with every opportune, varied, injection of DNA into her. Your children are 50% Father, and a mix of the Mother and every guy that she ever had unprotected sex with... Which is probably why it was probably never even researched...
Logged
 



  • Print
Pages: [1]   Go Up
« previous next »
Tags: driving licence 
 

Similar topics (5)

What happens if a person with blood group A- marries a group B+ person?

Started by IzzieCBoard Physiology & Medicine

Replies: 1
Views: 2690
Last post 26/03/2018 22:25:59
by evan_au
How can I be blood group O if my father is group AB?

Started by JanetBoard Physiology & Medicine

Replies: 7
Views: 24888
Last post 09/12/2009 12:49:28
by rosy
Can a child with group O parents be blood group AB?

Started by TracyBoard Physiology & Medicine

Replies: 2
Views: 6598
Last post 05/12/2009 13:30:25
by iko
Is Trump on to something with the whole "disinfecting blood" ?

Started by PetrochemicalsBoard Physiology & Medicine

Replies: 21
Views: 4479
Last post 28/04/2020 03:56:02
by Petrochemicals
How are blood cells used as stem cells for cardiac repair?

Started by Michael Whiston Board Cells, Microbes & Viruses

Replies: 10
Views: 7381
Last post 23/05/2018 12:16:02
by puppypower
There was an error while thanking
Thanking...
  • SMF 2.0.15 | SMF © 2017, Simple Machines
    Privacy Policy
    SMFAds for Free Forums
  • Naked Science Forum ©

Page created in 0.163 seconds with 52 queries.

  • Podcasts
  • Articles
  • Get Naked
  • About
  • Contact us
  • Advertise
  • Privacy Policy
  • Subscribe to newsletter
  • We love feedback

Follow us

cambridge_logo_footer.png

©The Naked Scientists® 2000–2017 | The Naked Scientists® and Naked Science® are registered trademarks created by Dr Chris Smith. Information presented on this website is the opinion of the individual contributors and does not reflect the general views of the administrators, editors, moderators, sponsors, Cambridge University or the public at large.