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Genetics/ear shape and paternity


yello wrote at 2009-10-12 19:59:51
my husband and i both have attached lobes and our son has "free" lobes.  and no i didn't cheat. (i think i would be in a position to remember).  not lying.

D T wrote at 2010-06-02 05:43:13
What kind of garbage is this!!??  There have been conclusive studies showing ear lobe attachment is not a conclusive inherited trait.  Yet you publish it as truth.  Creating the opportunity for people to question their paternity.  Get a real expert!!

Kate wrote at 2010-06-04 21:21:12
This seems sketchy. My bio dad has detached earlobes but they are just flat with major lump. My mom has the same thing. The man I THOUGHT was my bio-dad has ear lobs that are also detached but more shapely at the bottom ... tricky, eh? 3 DNA tests proved he wasn't the father even though our earlobes kind of resembled one anothers.  

Austin wrote at 2011-10-10 00:47:14
I believe that the original poster may be more interested in the general curves of the ear itself? So, though obviously against your policy, though it begs the question of: How does the parent contribute to the general/overall shape of the ear in it's most obvious curves and contours?

Callcaw wrote at 2012-05-24 04:44:50
This is a common misconception learned in biology classes throughout high schools to provide a simple model of Mendelian genetics.

While it is far more likely to have attached earlobes if both parents have attached ear lobes, this trait is determined by many genes, thus, making it possible for two parents with attached earlobes to yield a child with free earlobes.

Don't believe what everyone tells you. Research. Research. Research.

agent5 wrote at 2012-11-16 01:58:50
this is my question. i have free earlobes and my wife has attached earlobe. our incoming baby is a girl. what should be the possible outcome of our baby's earlobes? is it free or attached.

is there a thing called semi-free ear lobes?

please answer. thank you


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Kristiann Dougherty, PhD


I can answer questions related to Mendelian inheritance, heredity, population genetics, genetic diseases, molecular biology techniques, transcription/translation, mitosis, meiosis. Please don't ask for predictions about what (or whom) your unborn baby will look like. I can't see the future, and in most cases, I am unable to provide a satisfactory answer, just a range of possiblities. That being said, I will attempt to answer questions related to children already born.


Conducted research in the field for about 12 years. Also am a Biology professor so I teach most of these subjects on a regular basis. Familiar with many examples to use as illustations.

Natl Association of Biology Teachers

Journal Biological Chemistry Proceedings of the National Academy of Science (PNAS) Cancer Research

BS in Biology, with concentration in Genetics - Purdue University PhD in Molecular Biology and Human Genetics - Johns Hopkins University

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