Ask a Geneticist

Chimera DNA paternity test
Chimera DNA paternity test
Chimera DNA paternity test
Homosexuality
Homosexuality
Homosexuality
I thought I heard a geneticist on TV say that the gene that creates blond hair also creates blue eyes, and I thought he suggested that only blonds have blue eyes - is this correct?
My parents are both brown eyed. I have blue eyes and I amMexican American. Can you help me figure out how to compile myPunnett square to determine the probability that resulted in my blue eyes?
My parents are both brown eyed. I have blue eyes and I amMexican American. Can you help me figure out how to compile myPunnett square to determine the probability that resulted in my blue eyes?
I read on your website about the mice that ended up different colors based on what their mom ate while pregnant. How does that work?
Can two parents with blue eyes have a child with brown eyes?
Can two parents with blue eyes have a child with brown eyes?
How the two gene model of eye color works
If evolutionary theories hold true, how did the leap from 24 to 23 chromosome pairs occur from 'apes' to humans? How is it possible for two chromosomes to merge into one, and for the resulting species to survive to breed?
Two different colored eyes
Is diabetes a genetic disease?
Does the dominant allele for a given trait show up as the prevalent phenotype in the population at large? For example, the presence of dimples is controlled by a dominant allele, but the majority of people do not have dimples. Why is this?
Can blue-eyed parents have a baby with brown eyes? Or green eyes? Can two parents without a cleft chin have a child with one? Can two curly-haired parents have a child with straight hair?
Is it possible for 2 Rh negative parents to produce a Rh positive child? I am pregnant with my second child. My blood type is O-. My husband and daughter both have A-. At my last OB appointment I was told that at my next visit I would have an an
I am 15 weeks pregnant and I recently had a series of bloodwork done. I found out that I was AB+. My father is definitely O- and my mother is unsure of her type. I have seen online many sites that say this is not possible, that my father cannot have
There are a lot of cases of lupus on my mother's side of the family. Both my mom and my younger sister have it. Is lupus genetic? Can I pass it on to my daughter? I want to know -- I have seen what this illness can do. I want to be ready.
My eleven year old daughter was born with blue eyes. When she was about five months old one eye began to turn brown but the other one stayed blue. She now has one predominately blue eye with a touch of brown in one area and a predominately brown eye
Eye color against the rules 1
Eye color against the rules 1
Eye color against the rules 1
Hello, I am trying to understand more about the gene that is responsible for cheek dimples and chin dimples. I understand how a set of parents <i>Dd</i> and <i>Dd</i> could have a child that is dimpleless, but is it genetically possible for a set
I am a redhead and I have Rh negative blood. Is there any genetic correlation between the two? Also, what is the difference between Rh negative and Rh positive blood types? Thanks
My father is an identical twin and my husband's grandfather is a fraternal twin. Does this increase our chances of having twins, or is the genetic trait only on the mother's side and only for fraternal twins? (P.S. we've always hoped for twins - a b
Is it possible for two brown eyed people to have a child with blue eyes? Both of these people have one parent with blue eyes,and one parent with brown eyes. Can brown-eyed parents have a blue-eyed baby?

Recent Questions

June 16, 2015: I know that crossing over can happen along chromosomes, but can crossing over happen inside genes themselves? It seems from what I have read that it can’t.
See Answer
June 3, 2015: My grandfather's brother has a genetic mutation, BRCA, and my grandfather's brother's daughter has it, too. My father's sister does not have it. What are the odds I have this mutation?
See Answer
May 27, 2015: Why is it that some traits show as codominant, but others show as incomplete dominant?
See Answer
May 21, 2015: Has anyone shown whether some kids are at a higher risk for getting autism from a vaccine?
See Answer

Buscar por categoría

Preguntas recientes

February 13, 2015: Recientemente, para recibir ayuda con nuestro embarazo, mi esposa y yo acudimos a un centro de fertilidad. Ahora nos encontramos preocupados de que los doctores hayan implantado el embríon equivocado. Ambos somos del tipo de sangre A, pero nuestro hijo tiene del tipo AB, el cuál hemos investigado que es imposible. Cómo podemos saber que fue lo que realmente ocurrió?
Ver Repuesta

February 13, 2015: Recientemente, para recibir ayuda con nuestro embarazo, mi esposa y yo acudimos a un centro de fertilidad. Ahora nos encontramos preocupados de que los doctores hayan implantado el embríon equivocado. Ambos somos del tipo de sangre A, pero nuestro hijo tiene del tipo AB, el cuál hemos investigado que es imposible. Cómo podemos saber que fue lo que realmente ocurrió?
Ver Repuesta

February 13, 2015: Recientemente, para recibir ayuda con nuestro embarazo, mi esposa y yo acudimos a un centro de fertilidad. Ahora nos encontramos preocupados de que los doctores hayan implantado el embríon equivocado. Ambos somos del tipo de sangre A, pero nuestro hijo tiene del tipo AB, el cuál hemos investigado que es imposible. Cómo podemos saber que fue lo que realmente ocurrió?
Ver Repuesta

July 2, 2013: ¿Las personas nacen gay, o es ser gay un comportamiento que se aprende?
Ver Repuesta